As filed with the Securities and Exchange Commission on March 31, 2000
                                                        Registration No. 333-
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                ----------------
                                    FORM S-1
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933

                                ----------------
                                  TELIK, INC.
             (Exact name of registrant as specified in its charter)

         Delaware                    8731                   93-0987903
     (State or other          (Primary Standard          (I.R.S. Employer
     jurisdiction of              Industrial           Identification No.)
     incorporation or        Classification Code
      organization)                Number)

                             750 Gateway Boulevard
                     South San Francisco, California 94080
                                 (650) 244-9303
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)

                                ----------------

                            Michael M. Wick, MD, PhD
                      Chairman and Chief Executive Officer
                                  Telik, Inc.
                             750 Gateway Boulevard
                     South San Francisco, California 94080
                                 (650) 244-9303
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)

                                ----------------

                                   Copies to:
       Deborah A. Marshall, Esq.               Edwin D. Williamson, Esq.
        Gregory B. Abbott, Esq.                   Sullivan & Cromwell
           Cooley Godward LLP                   1701 Pennsylvania Avenue
           One Maritime Plaza                    Washington, D.C. 20006
               20th Floor                            (202) 956-7500
      San Francisco, CA 94111-3580
             (415) 693-2000

                                ----------------

  Approximate date of proposed sale to the public: As soon as practicable after
the registration statement becomes effective.

  If any of the securities being registered on this form are to be offered on a
delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933 (the "Securities Act"), check the following box. [_]

  If this form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration statement number of the earlier effective
registration statement for the same offering. [_]

  If this form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_]

  If this form is a post-effective amendment filed pursuant to Rule 462(d)
under the Securities Act, check the following box and list the Securities Act
registration number of the earlier effective registration statement for the
same offering. [_]

  If delivery of the prospectus is expected to be made pursuant to Rule 434,
check the following box. [_]

                                ----------------

                        CALCULATION OF REGISTRATION FEE

- -------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------

                                       Proposed        Proposed
                           Amount      Maximum          Maximum
 Title Of Securities To    To Be    Offering Price     Aggregate        Amount Of
     Be Registered       Registered  Per Share(1)  Offering Price(1) Registration Fee
- -------------------------------------------------------------------------------------
                                                         
Common Stock, par value
 $.01..................                               $75,000,000        $19,800
- -------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------

(1) Estimated solely for the purpose of calculating the amount of the
    registration fee in accordance with Rule 457 under the Securities Act of
    1933.

                                ----------------

  The registrant hereby amends this registration statement on such date or
dates as may be necessary to delay its effective date until the registrant
shall file a further amendment which specifically states that this registration
statement shall thereafter become effective in accordance with Section 8(a) of
the Securities Act of 1933, or until the registration statement shall become
effective on such date as the Commission, acting pursuant to said Section 8(a),
may determine.

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------


++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+The information in this prospectus is not complete and may be changed. We may +
+not sell these securities until the registration statement filed with the     +
+Securities and Exchange Commission is effective. This prospectus is not an    +
+offer to sell these securities and we are not soliciting offers to buy these  +
+securities in any state where the offer or sale is not permitted.             +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

PRELIMINARY PROSPECTUS               Subject to completion, dated March 31, 2000
- --------------------------------------------------------------------------------

    Shares


[LOGO OF TELIK]


TELIK, INC.

Common Stock

- --------------------------------------------------------------------------------

This is an initial public offering of shares of our common stock. We are
offering        shares. No public market currently exists for our common stock.
We expect the public offering price to be between $    and $    per share.

We applied to have our common stock listed on the Nasdaq National Market under
the symbol "TELK."

Before buying any shares you should read the discussion of material risks of
investing in our common stock in "Risk factors" beginning on page 5.

Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.



                                        Per
                                       Share    Total
- -----------------------------------------------------
                                       
Public offering price                  $     $
- -----------------------------------------------------
Underwriting discount and commissions  $     $
- -----------------------------------------------------
Proceeds, before expenses, to Telik    $     $
- -----------------------------------------------------


The underwriters may also purchase up to     shares of common stock from us at
the public offering price, less the underwriting discounts and commissions,
within 30 days from the date of this prospectus. This option may be exercised
only to cover over-allotments, if any. If the option is exercised in full, the
total underwriting discounts and commissions will be $   , and the total
proceeds, before expenses, to us will be $   .

The underwriters are offering the common stock as described under
"Underwriting." Delivery of the shares will be made on or about    , 2000.

Warburg Dillon Read LLC

                                  Chase H & Q

                                                          Legg Mason Wood Walker
                                                          Incorporated


Inside Front Cover Graphic

  Title: Working to discover, develop and commercialize small molecule
therapeutics to treat major diseases including cancer and diabetes.

  Legend: Product Pipeline. We discovered all of our drug candidates using
TRAP, our proprietary Target-Related Affinity Profiling technology.

  Graphic Description: This graphic shows Telik's product pipeline and the
stage of development of Telik's product candidates. In the background is a C-
shaped figure containing the words TRAP technology spanning the graphic from
left to right to indicate that all of our product candidates have been
discovered using TRAP. Extending from lower left to upper right are four
rectangles. The rectangle at the lower left, labeled Inhibitors of Caspase-3,
IGF-1, MIP-1 and MCP-1, is aligned with the label Research to indicate that
these programs are at the research stage. Moving right, the next rectangle,
labeled insulin receptor activator, is aligned with the label Preclinical to
indicate that these programs are at the preclinical stage of development. The
third rectangle in the sequence, labeled TLK199 bone marrow stimulant, is
aligned with the label Pre-IND to indicate that the product candidate TLK199 is
at the pre-IND stage of development. The final rectangle at the upper right,
labeled TLK286 tumor activated chemotherapeutic drug, is aligned with the label
Phase I to indicate that the product candidate TLK286 is in phase I clinical
trials.


Gatefold Graphic

  Title: TLK286 A targeted chemotherapeutic drug for the treatment of
chemotherapy-resistant cancers.

  Legend: The elevated levels of the enzyme GST P1-1 in cancer cells lead to
selective activation of TLK286 and cancer cell death.

  Graphic Description: This is a depiction of a cancer cell, which shows how
TLK286 enters the cell. Inside the cell, TLK286 is activated by GST P1-1, which
is represented by a pair of scissors. The activated cytotoxic drug is shown
moving into the nucleus of the cell where it causes cell death.

  Title: TLK199    A small molecule bone marrow stimulant for treating the
neutropenia associated with cancer chemotherapy.

  Legend: TLK199 stimulates white blood cell production by activating the same
cellular signaling pathway activated by natural white blood cell stimulating
factors such as G-CSF.

  Graphic Description: This is a depiction of a bone marrow cell and shows how
TLK199 enters the cell and interacts with a signaling pathway that is also
stimulated by G-CSF, leading to the replication and differentiation of white
blood cells.


  Until       , 2000 (25 days after the date of this prospectus), all dealers
selling shares of our common stock, whether or not participating in this
offering, may be required to deliver a prospectus. This delivery requirement is
in addition to the obligation of dealers to deliver a prospectus when acting as
underwriters and with respect to their unsold allotments or subscriptions.

                               TABLE OF CONTENTS


                                   
Prospectus summary..................    1
The offering........................    3
Summary financial data..............    4
Risk factors........................    5
Forward-looking information.........   16
Use of proceeds.....................   17
Dividend policy.....................   17
Capitalization......................   18
Dilution............................   19
Selected financial data.............   20
Management's discussion and analysis
 of financial condition and results
 of operations......................   21


                                    
Business.............................   24
Management...........................   40
Related party transactions...........   50
Principal stockholders...............   51
Description of capital stock.........   53
Shares eligible for future sale......   56
Underwriting.........................   57
Validity of the shares...............   58
Experts..............................   59
Where you can find more information..   59
Index to financial statements........  F-1


                             ABOUT THIS PROSPECTUS

  You should rely only on the information contained in this prospectus. We have
not authorized anyone to provide you with information different from that
contained in this prospectus. This prospectus is not an offer to sell or a
solicitation of an offer to buy our common stock in any jurisdiction where it
is unlawful. The information contained in this prospectus is accurate only as
of the date of this prospectus, regardless of the time of delivery of this
prospectus or of any sale of common stock. This preliminary prospectus is
subject to completion prior to this offering.

  "Telik" and the Telik logo are trademarks of Telik, Inc. Other trademarks and
trade names appearing in this prospectus are the property of their holders.


                               PROSPECTUS SUMMARY
- --------------------------------------------------------------------------------

  This summary highlights information contained elsewhere in this prospectus.
You should read the entire prospectus carefully, especially the risks of
investing in our common stock discussed under "Risk factors." Our principal
executive offices are located at 750 Gateway Boulevard, South San Francisco, CA
94080. Our telephone number is (650) 244-9303. Our web site is
http://www.telik.com. We do not intend the information found on our web site to
be a part of this prospectus.

                                  Telik, Inc.

  Telik is a biopharmaceutical company working to discover, develop and
commercialize drugs to treat serious diseases for which there is significant
demand for new therapies. Our most advanced product development programs are
for the treatment of cancer and diabetes. Our first product candidate, TLK286,
entered human clinical trials in January 2000. TLK286 is for the treatment of
major cancers that have resisted standard treatments. We expect to advance our
second product candidate, TLK199, into human clinical trials later this year.
TLK199 is for the treatment of the depletion of infection-fighting white blood
cells, which is a toxic side effect of cancer therapy. By the end of this year,
we intend to select for development a product candidate from a proprietary
family of insulin receptor activators for the treatment of Type 2 diabetes.

  All of our product candidates are small molecules. Small molecule drugs offer
advantages in ease of manufacturing and administration, the potential for oral
dosing and applicability to a wider range of disease targets, including those
inside the cell. We discovered all of our product candidates using our
proprietary technology known as Target-Related Affinity Profiling, or TRAP,
which enables the rapid and efficient discovery of small molecule product
candidates. TRAP exploits a fundamental property of all drugs, which is their
interaction with molecules in the body called proteins. By developing a profile
of how a protein disease target interacts with small molecules, we are able to
select product candidates for development much faster than with alternative
technologies, such as ultra high-throughput screening, or UHTS. We continuously
protect the intellectual property surrounding our product candidates and our
technology platform. In the United States, we hold 36 patents protecting our
discoveries, and more than 16 applications are pending. In addition, outside
the United States, we hold 56 patents, and more than 79 patent applications are
pending.

Cancer Product Candidates

  TLK286 is a small molecule product candidate we are developing for the
treatment of chemotherapy resistant cancers. TLK286 binds to a protein known as
glutathione S-transferase, or GST. GST plays an important role in the
development of resistance to standard chemotherapy drugs by breaking these
drugs down and removing them from the body before they can kill cancer cells.
GST P1-1 is a type of GST that is elevated in many cancers. When TLK286 binds
to GST P1-1, it releases a compound with a proven mechanism for killing cancer
cells. In this way, TLK286 kills cancer cells by utilizing the same mechanism
that normally deactivates chemotherapeutic drugs. In preclinical studies,
TLK286 is effective in killing human cancer cells that are resistant to
standard chemotherapeutic drugs. We began clinical trials for TLK286 in January
of this year.

  TLK199 is our product candidate for the treatment of the decrease in the
number of white blood cells, or neutropenia, that occurs as a toxic side effect
of cancer chemotherapy. As a small molecule drug, TLK199 may represent an
alternative to the pharmaceutical protein version of granulocyte colony
stimulating factor, or G-CSF, known as Neupogen. TLK199 activates the same
signaling

                                       1


pathway that is activated by G-CSF, causing the stimulation of white blood cell
production. TLK199 accelerates the recovery from chemotherapy-induced
neutropenia in animals, similar to the results observed following treatment
with G-CSF. TLK199 and G-CSF also produce similar increases in the number of
circulating white blood cells in normal animals. We are conducting preclinical
development studies of TLK199 and intend to file an Investigational New Drug
application, or IND, with the FDA, for the initiation of clinical trials in the
second half of 2000.

  We have retained rights for the worldwide commercialization of TLK286 and
TLK199.

Diabetes Product Candidates

  We have discovered and are developing proprietary orally active small
molecule insulin receptor activators for the treatment of Type 2 diabetes.
These product candidates bind to the insulin receptor and, like insulin,
activates the receptor which initiates a sequence of events called insulin
signaling. Insulin signaling lowers sugar levels in the blood by facilitating
the entry of sugar into muscle and liver cells where the sugar is metabolized.
Results from animal models of diabetes suggest that these compounds produce
more sensitive and effective control of blood sugar levels. We anticipate
selecting a clinical candidate from the family of insulin receptor activators
by the end of 2000. We will then initiate the necessary preclinical testing to
permit filing of an IND with the FDA and advancement into phase I clinical
testing. Our leading product candidate in this group is TLK17411.

TRAP--Our Proprietary Drug Discovery Technology

  Our success in identifying product candidates has resulted from the use of
TRAP, our proprietary drug discovery technology. We have used TRAP to rapidly
and efficiently identify active small molecule product candidates relevant to a
variety of disease states. In addition to generating our current product
portfolio, TRAP has allowed us to build our research pipeline with product
candidates targeting cancer, diabetes, inflammatory disease and stroke. We have
also entered into TRAP-based technology collaborations with third parties.

  TRAP offers solutions to the two major challenges facing drug discovery--the
explosive growth in the number of new protein targets generated by advances in
genomics and the intrinsic limitations of the UHTS approach. TRAP reduces the
need for large libraries of compounds, automation, assay technology and target
licensing required by UHTS.

Strategy

  Key elements of our strategy are to:

     . develop small molecule drugs for major disease areas, such as
       cancer, diabetes, inflammatory diseases and stroke;

     . retain significant commercialization rights to our product
       candidates;

     . select targets where we believe we can show efficacy early and where
       we believe there is a shorter path to regulatory approval;

     . use TRAP to sustain a pipeline of product candidates; and

     . leverage and expand the use of TRAP by entering into additional
       collaborations.

                                       2


                                  The offering

  The following information assumes that the underwriters do not exercise the
over-allotment option we granted to them to purchase additional shares in the
offering.


                                               
Common stock we are offering.....................      shares

Common stock to be outstanding after the               shares
 offering........................................

Proposed Nasdaq National Market symbol........... TELK

Use of proceeds.................................. Research and development and
                                                  general corporate purposes


  The number of shares of common stock to be outstanding after this offering is
based on the number of shares of common stock outstanding as of December 31,
1999, after giving effect to:

  . the issuance on March 31, 2000 of 1,166,667 shares of Series K
    convertible preferred stock at a price equivalent to $6.00 per share of
    common stock and the conversion of those shares upon the closing of this
    offering;

  . the exercise prior to the closing of this offering of outstanding
    warrants to purchase 34,559 shares at a weighted average exercise price
    of $5.28 per share; and

  . the automatic conversion upon the closing of this offering of all
    convertible preferred stock outstanding as of December 31, 1999 into
    12,640,035 shares of common stock.

  Shares to be outstanding excludes:

  . 2,991,787 shares of common stock underlying options outstanding as of
    December 31, 1999 with a weighted average exercise price of $1.40 per
    share;

  . 289,672 shares of common stock underlying options granted since December
    31, 1999 under our 1996 Stock Option Plan with a weighted average
    exercise price of $2.00 per share; and

  . 2,000,000 shares available for issuance or future grant under our 2000
    Equity Incentive Plan stock option plans, 250,000 shares available for
    issuance under our 2000 Employee Stock Purchase Plan and 300,000 shares
    available for issuance under our 2000 Non-Employee Directors' Stock
    Option Plan.

  No additional options may be granted under our 1996 Stock Option Plan.

                                       3



                             Summary financial data

  The following tables summarize our financial data. The pro forma information
contained in the statement of operations data gives effect to the conversion of
preferred stock and exercise of warrants outstanding on December 31, 1999. The
pro forma balance sheet data gives effect to the conversion of preferred stock
and exercise of warrants referred to in the first paragraph following the table
under "The offering." The pro forma as adjusted column of the balance sheet
data gives effect to that conversion of preferred stock and exercise of
warrants, and to the sale of     shares of our common stock at an assumed
initial public offering price of $    per share, after deducting the estimated
underwriting discounts, commissions and offering expenses payable by us.



                                                     Year Ended December 31,
                                                     -------------------------
                                                      1997     1998     1999
                                                     -------  -------  -------
                                                      (In thousands, except
                                                         per share data)
                                                              
Statement of operations data
Contract revenues from collaborations..............  $ 1,652  $ 3,194  $ 4,237
Total operating expenses...........................   10,560   10,101   11,699
Net loss...........................................   (8,618)  (6,579)  (7,064)
Net loss per share, basic and diluted..............  $ (3.95) $ (3.00) $ (3.21)
                                                     =======  =======  =======
Weighted average shares used in computing net loss
 per share, basic and diluted......................    2,184    2,194    2,204
Pro forma net loss per share, basic and diluted....                    $ (0.47)
                                                                       =======
Weighted average shares used in computing pro forma
 net loss per share, basic and diluted.............                     14,879




                                                    December 31, 1999
                                              --------------------------------
                                                                    Pro Forma
                                               Actual   Pro Forma  as adjusted
                                              --------  ---------  -----------
                                                      (In thousands)
                                                          
Balance sheet data
Cash, cash equivalents and short-term
 investments................................. $  7,556  $  9,688    $
Working capital..............................    3,936     6,068
Total assets.................................    9,170    11,484
Capital lease obligations, less current
 portion.....................................       25        25          25
Deferred stock compensation..................     (260)     (260)       (260)
Accumulated deficit..........................  (51,384)  (51,384)    (51,384)
Total stockholders' equity................... $  5,130  $  7,262    $


                                       4


                                  RISK FACTORS
- --------------------------------------------------------------------------------

  You should carefully consider the risks described below together with all of
the other information included in this prospectus before making an investment
decision. If any of the following risks actually occurs, our business,
financial condition or results of operations could be harmed. In that case, the
trading price of our common stock could decline, and you may lose all or part
of your investment.

                         Risks Related To Our Business

We have a limited operating history, a history of operating losses and uncer-
tainty of future profitability.

  Due to the significant research and development expenditures required to
develop our TRAP technology and identify new product candidates and the lack of
any products to generate revenue, we have not been profitable and have
generated operating losses since we were incorporated in 1988. We will never be
profitable unless we develop, and obtain regulatory approval and market
acceptance of, our product candidates. Currently, our revenues are generated
solely from research payments from our collaboration agreements and licenses
and are insufficient to generate profitable operations. As of December 31,
1999, we had an accumulated deficit of approximately $51.4 million. We expect
to incur losses for at least the next several years and expect that these
losses will actually increase as we expand our research and development
activities and incur significant clinical testing costs. If the time required
to generate revenues and achieve profitability is longer than anticipated, or
if we are unable to obtain necessary capital, we may not be able to continue
our operations. Our ability to maintain revenues in the near term depends on
our ability to enter into additional collaborative agreements with third
parties. To date, substantially all of our revenue has been from project
initiation fees and research reimbursement paid pursuant to existing
collaborative agreements with third parties. We cannot assure you when we will
receive any product revenue. We are unable to predict when, or if, we will
become profitable and even if we are able to achieve profitability at any point
in time, we cannot assure you that our operations will be able to maintain
profitability during any future periods.

Our leading cancer product candidate, TLK286, may fail in clinical trials or
its development may be delayed.

  We only recently started a phase I clinical trial of TLK286 and to date have
only limited data on safety and no data demonstrating efficacy in humans. We
cannot assure you that the results from clinical trials will be favorable or
even be completed. We cannot assure you that we will be able to obtain FDA
approval required for us to proceed into more advanced clinical trials, even if
the early results are favorable. If the results show lack of safety or lack of
efficacy in humans, we may be forced to discontinue development of TLK286. Our
clinical trials involve patients who failed to respond to conventional cancer
treatments and have advanced disease. During the course of the trials, these
patients may die or suffer adverse medical effects for reasons that may not be
related to TLK286. These events may affect the interpretation of our clinical
trial results.

Our second product candidate, TLK199, may fail in its development or may be de-
layed and will need to compete successfully with well-established existing
products.

  We are in the process of conducting the necessary work to support the filing
of an IND application for TLK199. Even if we file an IND, the FDA may not
accept it. The FDA may require

                                       5


us to run more preclinical tests, which would be expensive and time-consuming.
As a result, we may not begin clinical trials of TLK199 as planned. In order to
obtain regulatory approval, TLK199 needs to be at least as safe and effective
as existing drug therapies. In order to gain market share, TLK199 needs to
offer advantages over existing treatments.

Identification of a clinical product candidate in our diabetes research program
may be delayed.

  Our success depends, in part, on our ability to begin preclinical development
of our potential diabetes product candidates and take them through early
clinical trials. At this time, we do not have a clinical product candidate and
we are dependent on ongoing research to identify a compound suitable for
further development. Given the uncertainty inherent in a research stage
program, we may not be able to identify a suitable clinical candidate within
the anticipated schedule, if at all, resulting in a delay of our development
program in the area of diabetes.

The future performance of TRAP, our proprietary drug discovery technology, is
uncertain.

  Our proprietary TRAP technology is a relatively new drug discovery method and
we do not know if this method will lead to the successful identification and
development of additional product candidates and, ultimately, the sale of
commercially viable small molecule therapeutics. Ongoing research efforts are
needed in order to maintain a pipeline of potential product candidates. If we
are unable to identify new product candidates using our TRAP technology, either
internally or through external collaborations, we may not be able to maintain
our product pipeline and develop commercially viable drugs.

  We selected our protein panel of approximately 20 proteins for their distinct
patterns of recognizing small molecules. Our panel may be lacking essential
types of interactions that we have not yet identified, which may result in our
inability to identify active compounds against our and our collaborators'
protein targets.

  We protect our drug discovery technology by a combination of patents and
trade secrets. If the identity of specific proteins or other elements of our
technology become known, our competitive advantage in drug discovery could be
reduced.

The progress and results of our preclinical testing and clinical trials are un-
certain.

  Preclinical testing and clinical development are long, expensive and
uncertain processes. It may take us or our collaborators several years to
complete this testing, and failure can occur at any stage of the process.
Interim results of trials do not necessarily predict final results, and
acceptable results in early trials may not be repeated in later trials. Success
in preclinical testing and early clinical trials does not ensure that later
clinical trials will be successful. A number of companies in the pharmaceutical
industry, including biotechnology companies, have suffered significant setbacks
in advanced clinical trials, even after promising results in earlier trials.
Commercialization of our product candidates depends upon successful completion
of clinical trials.

  Even if we are able to achieve success in our preclinical testing, we, or our
collaborators, must provide the FDA and foreign regulatory authorities with
clinical data that demonstrates the safety and efficacy of our products in
humans before they can be approved for commercial sale. Only one of the product
candidates, TLK286, has advanced to the stage of human testing designed to
determine safety, known as phase I clinical trials. We do not know whether any
of our clinical trials will demonstrate sufficient safety and efficacy
necessary to obtain the requisite regulatory approvals or

                                       6


will result in marketable products. Our failure, or the failure of our
collaborators, to adequately demonstrate the safety and efficacy of our
products under development would prevent receipt of FDA approval and,
ultimately, commercialization of our products.

  Any clinical trial may fail to produce results satisfactory to the FDA.
Preclinical and clinical data can be interpreted in different ways, which could
delay, limit or prevent regulatory approval. Negative or inconclusive results
or adverse medical events during a clinical trial could cause a clinical trial
to be repeated or a program to be terminated or could delay getting approval.
We typically rely on third party clinical investigators to conduct our clinical
trials and other third party organizations to perform data collection and
analysis and, as a result, we may face additional delaying factors outside our
control.

If our competitors develop and market products that are more effective than
ours, or obtain marketing approval before we do, our commercial opportunity
will be reduced or eliminated.

  The biotechnology and pharmaceutical industries are intensely competitive and
subject to rapid and significant technological change. Many of the drugs that
we are attempting to develop, for example TLK199, will be competing with
existing therapies. In addition, a number of companies are pursuing the
development of pharmaceuticals that target the same diseases and conditions
that we are targeting. We face competition from pharmaceutical and
biotechnology companies in the United States and abroad. Our competitors may
develop new screening technologies and may utilize discovery techniques or
partner with collaborators in order to develop products more rapidly or
successfully than we or our collaborators are able to do. Many of our
competitors, particularly large pharmaceutical companies, have substantially
greater financial, technical and human resources than we do. In addition,
academic institutions, government agencies and other public and private
organizations conducting research may seek patent protection with respect to
potentially competing products or technologies and may establish exclusive
collaborative or licensing relationships with our competitors.

  We believe that our ability to compete is dependent, in part, upon our
ability to continue to advance and leverage our TRAP technology and upon our
and our collaborators' ability to develop and commercialize pharmaceutical
products discovered using our technology. In addition, we will depend upon our
ability to attract and retain qualified personnel, obtain patent protection or
otherwise develop proprietary technology or processes and secure sufficient
capital resources for the expected substantial time period between
technological conception and commercial sales of products based upon our
technology. The failure by us or any of our collaborators in any of those areas
may prevent the successful commercialization of our potential product
candidates.

  Our competitors may succeed in developing technologies and drugs that are
more effective or less costly than any which are being developed by us or which
would render our technology and potential drugs obsolete and noncompetitive. In
addition, our competitors may succeed in obtaining FDA or other regulatory
approvals for product candidates more rapidly than we or our collaborators. We
cannot assure you that drugs resulting from our research and development
efforts, or from our joint efforts with our existing or future collaborative
partners, will be able to compete successfully with competitors' existing
products or products under development or that they will obtain regulatory
approval in the United States or elsewhere.

We will need additional capital in the future to sufficiently fund our opera-
tions and research.

  The process of carrying out the development of our own unpartnered products
to later stages of development and our research programs for our corporate
partners will require significant additional

                                       7


expenditures, including preclinical testing, clinical trials and obtaining
regulatory approval. As a result, we will require additional financing to fund
our operations. We do not know whether additional financing will be available
when needed, or that, if available, we will obtain financing on terms favorable
to our stockholders. We have expended substantial amounts of cash to date and
expect capital outlays and operating expenditures to increase over the next
several years as we expand our research and development activities.

  We believe that the net proceeds from this offering, existing cash and
investment securities and anticipated cash flow from existing and future
collaborations, if any, will be sufficient to support our current operating
plan through at least the next 18 months; however, we have based this estimate
on assumptions that may prove to be wrong. Our future funding requirements will
depend on many factors, including, but not limited to:

  . the progress and success of preclinical and clinical trials of our
    product candidates;

  . the progress and number of research programs in development;

  . the costs and timing of obtaining regulatory approvals;

  . our ability to establish, and the scope of, new collaborations;

  . our ability to meet the milestones identified in our collaborative
    agreements which trigger payments; and

  . the costs and timing of obtaining, enforcing and defending our patent and
    intellectual property rights.

  To the extent we raise additional capital by issuing equity securities, our
stockholders may experience substantial dilution. To the extent that we raise
additional funds through collaboration and licensing arrangements, we may be
required to relinquish some rights to our technologies or product candidates,
or grant licenses on terms that are not favorable to us. If adequate funds are
not available, we will not be able to continue developing our products.

Because regulatory approval must be obtained to market products in the United
States and foreign countries, we cannot predict whether or when we, or our
collaborators, will be permitted to commercialize our product candidates.

  The pharmaceutical industry is subject to stringent regulation by a wide
range of authorities. We cannot predict whether regulatory clearance will be
obtained for any product that we are developing or hope to develop. A
pharmaceutical product cannot be marketed in the United States until it has
completed rigorous preclinical testing and clinical trials and an extensive
regulatory clearance process implemented by the FDA. Satisfaction of regulatory
requirements typically takes many years, is dependent upon the type, complexity
and novelty of the product and requires the expenditure of substantial
resources. Of particular significance are the requirements covering research
and development, testing, manufacturing, quality control, labeling and
promotion of drugs for human use.

  Before commencing clinical trials in humans, we, or our collaborators, must
submit and receive approval from the FDA of an IND application. We must comply
with FDA "Good Laboratory Practices" regulations in our preclinical studies.
Clinical trials are subject to oversight by institutional review boards and the
FDA and:

  . must be conducted in conformance with the FDA's IND regulations;

  . must meet requirements for institutional review board oversight;

  . must meet requirements for informed consent;

  . must meet requirements for Good Clinical Practices;

                                       8


  . are subject to continuing FDA oversight;

  . may require large numbers of participants; and

  . may be suspended by us, our collaborators or the FDA at any time if it is
    believed that the subjects participating in these trials are being
    exposed to unacceptable health risks or if the FDA finds deficiencies in
    the IND application or the conduct of these trials.

  Before receiving FDA clearance to market a product, we or our collaborators
must demonstrate that the product is safe and effective in the patient
population that will be treated. Data obtained from preclinical and clinical
activities are susceptible to varying interpretations that could delay, limit
or prevent regulatory clearances. In addition, delays or rejections may be
encountered based upon additional government regulation from future legislation
or administrative action or changes in FDA policy or interpretation during the
period of product development, clinical trials and FDA regulatory review.
Failure to comply with applicable FDA or other applicable regulatory
requirements may result in criminal prosecution, civil penalties, recall or
seizure of products, total or partial suspension of production or injunction,
as well as other regulatory action. We have limited experience in conducting
and managing the clinical trials necessary to obtain regulatory approval.

  If regulatory clearance of a product is granted, this clearance will be
limited to those disease states and conditions for which the product is
demonstrated through clinical trials to be safe and efficacious. We cannot
ensure that any compound developed by us, alone or with others, will prove to
be safe and efficacious in clinical trials and will meet all of the applicable
regulatory requirements needed to receive marketing clearance.

  Outside the United States, the ability to market a product is contingent upon
receiving a marketing authorization from the appropriate regulatory
authorities. This foreign regulatory approval process typically includes all of
the risks associated with FDA clearance described above and may include
additional risks.

Our product candidates, even if approved by the FDA or foreign regulatory agen-
cies, may not be accepted by physicians, insurers or patients.

  If any of our products, after receiving FDA or other foreign regulatory
approval, fails to achieve market acceptance, our ability to become profitable
in the future will be adversely affected. We believe that market acceptance
will depend on our ability to provide acceptable evidence of safety, efficacy
and cost effectiveness. In addition, we believe market acceptance depends on
the effectiveness of our marketing strategy and the pricing of our products.

Our success is dependent on intellectual property rights held by us and third
parties and such rights are difficult and costly to protect.

  Our success will depend to a large part on our own, our licensees' and our
licensors' ability to obtain and defend patents for each party's respective
technologies and the compounds and other products, if any, resulting from the
application of these technologies. The patent positions of pharmaceutical and
biotechnology companies can be highly uncertain and involve complex legal and
factual questions. Accordingly, we cannot predict the breadth of claims allowed
in our or other companies' patents.

  Our success will also depend, in part, on our ability to operate without
infringing the intellectual property rights of others. We cannot assure you
that our activities will not infringe patents owned by others. We could incur
substantial costs in defending ourselves in suits brought against us, our

                                       9


collaborators, or any licensor or licensee and we cannot predict whether we or
our collaborators would be able to prevail in any such actions. If our products
or technologies are found to infringe patents issued to third parties, the
manufacture, use and sale of our products could be enjoined, and we could be
required to pay substantial damages. In addition, we may be required to obtain
licenses to patents or other proprietary rights of third parties. No assurance
can be given that any licenses required under any such patents or proprietary
rights would be made available on terms acceptable to us, if at all. Failure to
obtain such licenses could negatively affect our business.

  The degree of future protection for our proprietary rights is uncertain and
we cannot assure you that:

  . we were the first to make the inventions covered by each of our pending
    patent applications;

  . we were the first to file patent applications for these inventions;

  . others will not independently develop similar or alternative technologies
    or duplicate any of our technologies;

  . any of our pending patent applications will result in issued patents;

  . any patents issued to us or our collaborators will provide a basis for
    commercially viable products, will provide us with any competitive
    advantages or will not be challenged by third parties;

  . we will develop additional proprietary technologies that are patentable;
    or

  . the patents of others will not have an adverse effect on our ability to
    do business.

  In addition, we could incur substantial costs in litigation if we are
required to defend against patent suits brought by third parties or if we
initiate these suits.

  Others may have filed and in the future may file patent applications covering
small molecules or therapeutic products that are similar to ours. We cannot
assure you that any patent application filed by someone else will not have
priority over patent applications filed by us. Any legal action against our
collaborators or us claiming damages and seeking to enjoin commercial
activities relating to the affected products and processes could, in addition
to subjecting us to potential liability for damages, require our collaborators
or us to obtain a license to continue to manufacture or market the affected
products and processes. We cannot predict whether we or our collaborators would
prevail in any of these actions or that any license required under any of these
patents would be made available on commercially acceptable terms, if at all. We
believe that there may be significant litigation in the industry regarding
patent and other intellectual property rights. If we become involved in
litigation, it could consume a substantial portion of our managerial and
financial resources and we may not be successful in any such litigation.

  We also rely on trade secrets to protect technology, including our TRAP
technology, where we believe patent protection is not appropriate or
obtainable. However, trade secrets are difficult to protect. While we require
employees, academic collaborators and consultants to enter into confidentiality
agreements, we may not be able to adequately protect our trade secrets or other
proprietary information in the event of any unauthorized use or disclosure or
the lawful development by others of such information.

We will be dependent upon collaborative arrangements to complete the develop-
ment and commercialization of some of our product candidates.

  We expect to enter into collaborative arrangements with third parties for
clinical trials, manufacturing, regulatory approvals or commercialization of
some of our products, particularly

                                       10


outside North America, or in disease areas requiring larger and longer clinical
trials, such as diabetes. These collaborative arrangements may require us to
relinquish important rights or may otherwise not be on terms favorable to us.
Dependence on collaborative arrangements will subject us to a number of risks.
We may not be able to control the amount and timing of resources our
collaborative partners may devote to the product candidates. Should a
collaborative partner fail to develop or commercialize a compound or product to
which it has rights from us, we may not receive any future milestone payments
and will not receive any royalties associated with this compound or product.
Business combinations or significant changes in a collaborative partner's
business strategy may also adversely affect a partner's willingness or ability
to complete its obligations under the arrangement. Failure to enter into
additional collaborative agreements on favorable terms could have a material
adverse effect on our business, financial condition and results of operations.

  Some of our collaborations are for early stage programs and allow partners
significant discretion in electing whether to pursue any of the planned
activities. We do not anticipate significant revenues to result from these
relationships until the collaborator has advanced products into clinical
testing, which will not occur for several years, if at all. Such arrangements
are subject to numerous risks, including the right of the collaboration partner
to control the timing of the research and development efforts, discretion to
advance lead candidates to clinical testing and commercialization of the
product. In addition, a collaborative partner could independently move forward
with a competing lead candidate developed either independently or in
collaboration with others, including our competitors.

If we are unable to contract with third parties to manufacture our products in
sufficient quantities and at an acceptable cost, we may be unable to meet
demand for our products and lose potential revenue.

  We do not currently operate manufacturing facilities for clinical or
commercial production of our products under development. We currently lack the
resources or capability to manufacture any of our products on a clinical or
commercial scale. As a result, we will be dependent on corporate partners,
licensees or other third parties for the manufacturing of clinical and
commercial scale quantities of our products. Our products may be in competition
with other products for access to these facilities. For this and other reasons,
our collaborators or third parties may not be able to manufacture these
products in a cost effective or timely manner. If not performed in a timely
manner, the clinical trial development of our product candidates or their
submission for regulatory approval could be delayed, and our ability to deliver
products on a timely basis could be impaired or precluded. We are currently
dependent upon a sole source of supply for clinical quantities of TLK286 and
are attempting to identify alternative suppliers. If our primary supplier fails
to perform, our clinical trials or commercialization of TLK286 would be
delayed. We may not be able to enter into any necessary third-party
manufacturing arrangements on acceptable terms, if at all. Our current
dependence upon others for the manufacture of our products may adversely affect
our future profit margin and our ability to commercialize products on a timely
and competitive basis.

If we are unable to create sales, marketing and distribution capabilities or
enter into agreements with third parties to perform these functions, we will
not be able to commercialize products.

  We currently have no sales, marketing or distribution capabilities. In order
to commercialize any products, we must internally develop sales, marketing and
distribution capabilities, or establish collaborations or other arrangements
with third parties to perform these services. We intend to market some products
directly in North America and rely on relationships with one or more
pharmaceutical companies with established distribution systems and direct sales
forces to market other products and

                                       11


address other markets. We may not be able to establish in house sales and
distribution capabilities or relationships with third parties. To the extent
that we enter into co-promotion or other licensing arrangements, our product
revenues are likely to be lower than if we directly marketed and sold our
products, and any revenues we receive will depend upon the efforts of third
parties, whose efforts may not be successful.

Our ability to generate revenues will be diminished if we or our collaborators
fail to obtain acceptable prices or an adequate level of reimbursement for
products from third-party payors.

  The drugs we are developing and hope to develop may be rejected by the
marketplace or have limited acceptance due to many factors, including cost. Our
ability to commercially exploit a drug may be limited due to the continuing
efforts of government and third-party payors to contain or reduce the costs of
health care through various means. For example, in some foreign markets,
pricing and profitability of prescription pharmaceuticals are subject to
government control. In the United States, we expect that there will continue to
be a number of federal and state proposals to implement similar government
control. In addition, increasing emphasis on managed care in the United States
will continue to put pressure on the pricing of pharmaceutical products. Cost
control initiatives could decrease the price that any of our collaborators
would receive for any products in the future. Further, cost control initiatives
could adversely affect our collaborators' ability to commercialize our products
and our ability to realize royalties from this commercialization.

  Our ability to commercialize pharmaceutical products with collaborators may
depend, in part, on the extent to which reimbursement for the products will be
available from:

  . government and health administration authorities;

  . private health insurers; and

  . other third-party payors.

  Significant uncertainty exists as to the reimbursement status of newly
approved health care products. Third-party payors, including Medicare, are
challenging the prices charged for medical products and services. Government
and other third-party payors increasingly are attempting to contain health care
costs by limiting both coverage and the level of reimbursement for new drugs
and by refusing, in some cases, to provide coverage for uses of approved
products for disease indications for which the FDA has not granted labeling
approval. Third-party insurance coverage may not be available to patients for
any products we discover and develop, alone or with collaborators. If
government and other third-party payors do not provide adequate coverage and
reimbursement levels for our products, the market acceptance of these products
may be reduced.

If product liability lawsuits are successfully brought against us, we may incur
substantial liabilities and may be required to limit commercialization of our
products.

  The testing and marketing of medical products entail an inherent risk of
product liability. If we cannot successfully defend ourselves against product
liability claims, we may incur substantial liabilities or be required to limit
commercialization of our products. Our inability to obtain sufficient product
liability insurance at an acceptable cost to protect against potential product
liability claims could prevent or inhibit the commercialization of
pharmaceutical products we develop, alone or with corporate collaborators. Our
corporate collaborators or we may not be able to obtain insurance at a
reasonable cost, if at all. While under various circumstances we are entitled
to be indemnified against losses by our corporate collaborators,
indemnification may not be available or adequate should any claim arise.

                                       12


If we use biological and hazardous materials in a manner that causes injury or
violates laws, we may be liable for damages.

  Our research and development activities involve the controlled use of
potentially harmful biological materials as well as hazardous materials,
chemicals and various radioactive compounds. We cannot completely eliminate the
risk of accidental contamination or injury from the use, storage, handling or
disposal of these materials. In the event of contamination or injury, we could
be held liable for damages that result, and any liability could exceed our
resources. We are subject to federal, state and local laws and regulations
governing the use, storage, handling and disposal of these materials and
specified waste products. The cost of compliance with these laws and
regulations could be significant.

Our research and development efforts will be seriously jeopardized if we are
unable to attract and retain key personnel.

  As a small company with approximately 36 employees, our success depends on
the continued contributions of our principal management and scientific
personnel and on our ability to develop and maintain important relationships
with leading academic institutions, scientists and companies in the face of
intense competition for such personnel. In particular, our research programs
depend on our ability to attract and retain highly skilled chemists and other
scientists. If we lose the services of Dr. Michael Wick or any of our other key
personnel, our research and development efforts could be seriously and
adversely affected. We may encounter increasing difficulty in attracting
qualified personnel as our operations expand and the demand for these
professionals increases, and this difficulty could significantly impede the
achievement of our research and development objectives.

We depend on our scientific advisors for the success and continuation of our
research efforts.

  We are dependent on our scientific and clinical advisors who conduct research
and provide us with access to technology developed by them. The potential
success of our drug discovery programs depends in part on continued
collaborations with these advisors. We and various members of our management
and research staff rely on these advisors for expertise in research and
development. Our scientific advisors are not our employees and may have
commitments to, or consulting or advisory contracts with, other entities that
may limit their availability to us. As a result, we have limited control over
their activities and, except as otherwise required by the consulting
agreements, can expect only limited amounts of their time to be dedicated to
our activities. All of these advisors have entered into scientific advisor
agreements with us. These agreements provide for specified terms of service and
are terminable at any time by written notice by either party. Some of the
advisors also have entered into separate consulting agreements with us. We
cannot assure you that we will be able to maintain these consulting agreements
or that our scientific advisors will not enter into consulting arrangements,
exclusive or otherwise, with competing pharmaceutical or biotechnology
companies, any of which could have a detrimental impact on our research
objectives and could have a material adverse effect on our business, financial
condition and results of operations.

                                       13


                         Risks Related To The Offering

There may not be an active, liquid trading market for our common stock.

  Prior to this offering, there has been no public market for the common stock
and we cannot assure you that an active trading market for our common stock
will develop following this offering. You may not be able to sell your shares
quickly or at the market price if trading in our stock is not active. The
initial public offering price will be determined by negotiations between us and
the representatives of the underwriters based upon a number of factors. The
initial public offering price may not be indicative of prices that will prevail
in the trading market.

Our stock price may be volatile, and your investment in our stock could decline
in value.

  The market prices for securities of biotechnology companies in general have
been highly volatile and may continue to be highly volatile in the future. The
following factors, in addition to other risk factors described in this section,
may have a significant impact on the market price of our common stock:

  . announcements of technological innovations or new commercial products by
    our competitors or us;

  . developments concerning proprietary rights, including patents;

  . developments concerning our collaborations;

  . publicity regarding actual or potential medical results relating to
    products under development by our competitors or us;

  . regulatory developments in the United States and foreign countries;

  . litigation;

  . economic and other external factors or other disaster or crisis; or

  . period-to-period fluctuations in financial results.

If our stockholders sell substantial amounts of our common stock after the of-
fering, the market price of our common stock may fall.

  If our stockholders sell substantial amounts of our common stock, including
shares issued upon the exercise of outstanding options and warrants, the market
price of our common stock may fall. These sales also might make it more
difficult for us to sell equity or equity-related securities in the future at a
time and price that we deem appropriate. Substantially all of our outstanding
shares are subject to a lock up for 180 days after the completion of this
offering. After the lock up expires, at least 4,944,669 shares of our common
stock will become freely tradable and an additional 9,937,206 shares will be
tradable subject to Rule 144.

  We intend to file a registration statement on Form S-8 covering shares
issuable upon exercise of options to purchase common stock and common stock
reserved for issuance under our stock plans.


                                       14


Anti-takeover provisions in our charter documents and under Delaware law may
make an acquisition of us, which may be beneficial to our stockholders, more
difficult.

  Provisions of our amended and restated certificate of incorporation and
bylaws, as well as provisions of Delaware law, could make it more difficult for
a third party to acquire us, even if doing so would benefit our stockholders.
These provisions:

  . authorize a classified board of directors;

  . establish that members of the board of directors may be removed for cause
    only upon the affirmative vote of stockholders owning at least a majority
    of our capital stock;

  . authorize the issuance of "blank check" preferred stock that could be
    issued by our board of directors to increase the number of outstanding
    shares and thwart a takeover attempt;

  . limit who may call a special meeting of stockholders;

  . prohibit stockholder action by written consent, thereby requiring all
    stockholder actions to be taken at a meeting of our stockholders; and

  . establish advance notice requirements for nominations for election to the
    board of directors or for proposing matters that can be acted upon at
    stockholder meetings.

  In addition, Section 203 of the Delaware General Corporation Law may
discourage, delay or prevent a third party from acquiring us.


                                       15


                          FORWARD LOOKING INFORMATION
- --------------------------------------------------------------------------------

  You should not rely on forward-looking statements in this prospectus. You can
usually identify forward-looking statements by terminology such as "may,"
"will," "should," "expect," "plan," "anticipate," "believe," "estimate,"
"predict," "intend," "potential," or "continue" or the negative of these terms
or other comparable terminology. Examples of these forward-looking statements
include, but are not limited to, statements regarding the following: the
development of TLK286, TLK199 or insulin receptor activators to treat cancer
and diabetes, our intention to file INDs for clinical testing for our product
candidates, the timing of the advancement of our product candidates into
preclinical and clinical trials, the design, goals and expansion of those
clinical trials, the selection of a product candidate from our proprietary
family of insulin receptor activators, our partnering with third parties to
share the costs of developing product candidates for diabetes and other
diseases that require larger and longer clinical trials, the use of TRAP to
select product candidates much faster than with alternative technologies, the
ability to address the U.S. hospital-based cancer market with a limited sales
and marketing presence, our entry into collaborations to assist in
commercializing our product candidates, our ability to apply our drug discovery
technology to virtually any protein target, our development of product
candidates with a clear path to regulatory approval and the potential to show
early evidence of clinical efficacy, our use of TRAP to provide a stream of
promising future development candidates, our selection of additional partners
for additional TRAP collaborations, the advantages of TLK199 over a therapeutic
protein, the effect of certain members of the TLK17411 family on more sensitive
control of blood sugar and on the delayed need for injected insulin, the
ability of our panel of proteins to simulate most of the significant
interactions between a small molecule and a protein, the use of TRAP to create
a small molecule library with a greater likelihood of containing a compound
that interacts with any specified protein and a higher probability of
generating drug candidates, the impact of our collaborations on our ability to
identify new product development and commercialization opportunities, the
financing sources for our future cash needs, our investment of the proceeds of
this offering, our use of third parties for materials production, the relations
with our employees and the adequacy of our existing facilities. Factors that
may cause actual results to differ materially from the results expressed or
implied by these forward-looking statements are set forth under "Risk factors."

  Although we believe that the expectations reflected in the forward-looking
statements are reasonable, we cannot guarantee future results, levels of
activity, performance or achievements. We do not intend to update any of the
forward-looking statements after the date of this prospectus or to conform
these statements to actual results.

                                       16


                                USE OF PROCEEDS
- --------------------------------------------------------------------------------

  The net proceeds to us from the sale of the     shares of common stock in the
offering are estimated to be $    ($    if the underwriters' over-allotment
option is exercised in full), assuming an initial public offering price of $
per share and after deducting the estimated underwriting discount and offering
expenses. We intend to use the net proceeds for research and development and
general corporate purposes. We may also use a portion of the net proceeds to
acquire or invest in products and technologies that are complementary to our
own, although no acquisitions are planned or being negotiated as of the date of
this prospectus, and no portion of the net proceeds has been allocated for any
specific acquisition. Pending these uses, the net proceeds will be invested in
investment-grade interest-bearing securities.

  The principal purposes of this offering are to increase our capitalization
and financial flexibility, to provide a public market for our common stock and
to facilitate access to public equity markets. As of the date of this
prospectus, we cannot specify with certainty all of the particular uses for the
net proceeds we will have upon completion of the offering. Accordingly, our
management will have broad discretion in the application of net proceeds.

                                DIVIDEND POLICY
- --------------------------------------------------------------------------------

  We have never declared or paid any cash dividends on our capital stock. We
currently intend to retain earnings, if any, to support the development of our
business and do not anticipate paying cash dividends for the foreseeable
future.

                                       17


                                 CAPITALIZATION
- --------------------------------------------------------------------------------

  The following table shows our capitalization as of December 31, 1999:

  . on an actual basis;

  . on a pro forma basis to give effect to the conversion of preferred stock
    and exercise of warrants referred to in the first paragraph following the
    table under "The offering"; and

  . on a pro forma as adjusted basis to give effect to the conversion of
    preferred stock and exercise of warrants referred to in the first
    paragraph following the table under "The offering" and the sale of
    shares of common stock by us in a public offering at an assumed price of
    $    per share, less the estimated underwriting discounts, commissions
    and offering expenses.

  This table should be read with "Management's discussion and analysis of
financial condition and results of operations" and our financial statements and
notes appearing elsewhere in this prospectus.



                                                                    Pro Forma as
                                                Actual   Pro Forma    adjusted
                                               --------  ---------  ------------
                                                       (In thousands)
                                                           
Capital lease and equipment loan obligations,
 including current portion.................... $    272  $    272     $    272
Stockholders' equity:
  Convertible preferred stock, $0.01 par
   value; authorized-- 1,023,799 shares
   actual, 3,023,799 shares pro forma and
   5,000,000 shares pro forma as adjusted;
   issued and outstanding--1,020,150 shares
   actual, none pro forma and pro forma as
   adjusted...................................       10
  Common stock, $0.01 par value; authorized--
   23,000,000 shares, 100,000,000 pro forma
   and pro forma as adjusted, issued and
   outstanding--2,207,281 shares actual,
   16,048,542 shares, pro forma and     shares
   pro forma as adjusted......................       22        44
Deferred compensation.........................     (260)     (260)        (260)
Additional paid-in capital....................   56,742    63,862
Short-term note receivable for Series K
 convertible preferred stock due April 10,
 2000.........................................      --     (5,000)         --
Accumulated deficit...........................  (51,384)  (51,384)     (51,384)
                                               --------  --------     --------
  Total stockholders' equity..................    5,130     7,262
                                               --------  --------     --------
                                               $  5,402  $  7,534         $
                                               ========  ========     ========


Issued and outstanding shares exclude the 5,831,459 shares issuable upon
exercise of the options outstanding and available for future issuance referred
to in the second paragraph following the table under "The offering."

                                       18


                                    DILUTION
- --------------------------------------------------------------------------------

  The pro forma net tangible book value of our common stock on December 31,
1999, after giving effect to the conversion of preferred stock and exercise of
warrants referred to in the first paragraph following the table under "The
offering" was approximately $5.3 million, or $0.36 per share. Pro forma net
tangible book value, giving effect to the sale of Series K preferred stock
subsequent to December 31, 1999, was approximately $7.3 million, or
approximately $0.45 per share. Pro forma net tangible book value per share
represents the amount of our total tangible assets less total liabilities
divided by the pro forma number of shares of common stock outstanding. Dilution
in pro forma net tangible book value per share represents the difference
between the amount per share paid by purchasers of shares of common stock in
this offering and the net tangible book value per share of our common stock
immediately afterwards. After giving effect to the sale of     shares of common
stock offered by this prospectus at an assumed initial public offering price of
$    per share, less the estimated underwriting discounts, commissions and
estimated offering expenses, our pro forma net tangible book value at December
31, 1999 would have been approximately $    million or $    per share. This
represents an immediate decrease in net tangible book value of $    per share
to new investors purchasing shares of common stock in this offering. The
following table illustrates this dilution on a per share basis:


                                                                     
   Assumed initial public offering price.............................  $   $--
     Pro forma net tangible book value per share at December 31,
      1999...........................................................  .36
     Increase per share attributable to pro forma activities
      subsequent to December 31, 1999................................  --
     Increase per share attributable to new investors................  --
                                                                       ---
   Pro forma net tangible book value per share after this offering...       --
                                                                           ----
   Dilution per share to new investors...............................      $--
                                                                           ====


  The following table summarizes, on a pro forma basis as of December 31, 1999,
after giving effect to the conversion of preferred stock and exercise of
warrants referred to in the first paragraph following the table under "The
offering", the differences between the number of shares purchased from us, the
total consideration paid and the average price per share paid by (a) the
existing stockholders and (b) the new investors. We have assumed an initial
public offering price of $    per share and have not deducted estimated
underwriting discounts, commissions and estimated offering expenses in our
calculations.



                            Shares Purchased  Total Consideration      Average
                           ------------------ ---------------------     Price
                             Number   Percent  Amount     Percent     Per Share
                           ---------- ------- ---------  ----------   ---------
                                                       
   Existing investors..... 14,881,875    0.0%  $     --          0.0%    $
   New investors..........                                               $
                           ----------  -----   ---------  ----------
     Total................             100.0%  $               100.0%
                           ==========  =====   =========  ==========


  The foregoing table excludes the 3,281,459 shares issuable upon exercise of
the options granted through March 30, 2000, referred in the second paragraph
following the table under "The offering." Assuming the exercise of such options
and the underwriters' over-allotment option, the number of shares purchased by
existing stockholders would be     shares, or   %, and the total consideration
paid by existing stockholders would be $   , or   %, for an average price per
share of $  .

                                       19


                            SELECTED FINANCIAL DATA
- --------------------------------------------------------------------------------

  This section presents our historical financial data. You should read
carefully the financial statements included in this prospectus, including the
notes to the financial statements and "Management's discussion and analysis of
financial condition and results of operations." The selected data in this
section is not intended to replace the financial statements.

  The statement of operations data for the years ended December 31, 1995, 1996,
1997, 1998 and 1999 and the balance sheet data at December 31, 1995, 1996,
1997, 1998 and 1999 have been derived from our financial statements which have
been audited by Ernst & Young LLP, our independent auditors. The financial
statements at December 31, 1998 and 1999 and for each of the three years in the
period ended December 31, 1999 are included elsewhere in this prospectus.
Historical results are not necessarily indications of future results. Contract
revenue from collaborations includes $1.3 million, $1.5 million, $1.8 million
and $2.0 million from a related party in 1996, 1997, 1998 and 1999,
respectively. See notes to the financial statements for an explanation of the
method used to determine the number of shares used in computing pro forma basic
and diluted loss per share.



                                           Year Ended December 31,
                                   -------------------------------------------
                                    1995     1996     1997     1998     1999
                                   -------  -------  -------  -------  -------
                                    (in thousands, except per share data)
                                                        
Statement of operations data
Contract revenue from
 collaborations................... $   358  $ 1,350  $ 1,652  $ 3,194  $ 4,237
Costs and expenses:
  Research and development........   5,784    8,688    8,090    7,952    9,547
  General and administrative......   1,428    1,880    2,470    2,149    2,152
                                   -------  -------  -------  -------  -------
Loss from operations..............  (6,854)  (9,218)  (8,908)  (6,907)  (7,462)
Interest income, net..............     164      320      290      328      398
                                   -------  -------  -------  -------  -------
Net loss.......................... $(6,690) $(8,898) $(8,618) $(6,579) $(7,064)
                                   =======  =======  =======  =======  =======
Net loss per share, basic and
 diluted.......................... $ (3.39) $ (4.41) $ (3.95) $ (3.00) $ (3.21)
                                   =======  =======  =======  =======  =======
Weighted average shares used in
 computing net loss per share,
 basic and diluted................   1,974    2,019    2,184    2,194    2,204
Pro forma net loss per share,
 basic and diluted................                                     $ (0.47)
                                                                       =======
Weighted average shares used in
 computing pro forma net loss per
 share, basic and diluted.........                                      14,879




                                              December 31,
                              ------------------------------------------------
                                1995      1996      1997      1998      1999
                              --------  --------  --------  --------  --------
                                             (in thousands)
                                                       
Balance sheet data
Cash, cash equivalents and
 short-term investments.....  $ 13,504  $ 11,179  $ 10,692  $ 14,402  $  7,556
Working capital.............    13,072     8,429     7,250    10,915     3,936
Total assets................    15,469    14,071    12,902    16,586     9,170
Total long-term
 liabilities................       594     1,231       797       425        83
Deferred compensation.......       --        --        --        --       (260)
Accumulated deficit.........   (20,225)  (29,123)  (37,741)  (44,320)  (51,384)
Total stockholders' equity..    14,171     9,942     8,438    12,177     5,130


                                       20


   MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
                                   OPERATIONS
- --------------------------------------------------------------------------------

  The following discussion and analysis should be read with "Selected financial
data" and our financial statements and notes included elsewhere in this
prospectus. The discussion in this prospectus contains forward-looking
statements that involve risks and uncertainties, such as statements of our
plans, objectives, expectations and intentions. The cautionary statements made
in this prospectus should be read as applying to all related forward-looking
statements wherever they appear in this prospectus. Our actual results could
differ materially from those discussed here. Factors that could cause or
contribute to these differences include those discussed in "Risk factors," as
well as those discussed elsewhere.

Overview

  Telik is engaged in the discovery, development and commercialization of small
molecule therapeutics. We have incurred net losses since inception and expect
to incur substantial and increasing losses for the next several years as we
expand our research and development activities and move our product candidates
into later stages of development. The process of carrying out the development
of our own unpartnered products to later stages of development and our research
programs for our corporate partners may require significant additional research
and development expenditures including preclinical testing and clinical trials,
as well as for obtaining regulatory approval. To date, we have funded our
operations primarily through the sale of equity securities, non-equity payments
from collaborators and capital asset lease financings. We received our first
funding from our collaborative partners in November 1996. Including both
research funding and the issuance of equity investments, we received an
aggregate of $13.7 million in 1998, of which $10.5 million was equity and $3.2
million was funded research, and an aggregate payment of $4.5 million for
funded research in 1999. As of December 31, 1999, our accumulated deficit was
approximately $51.4 million.

Deferred compensation

  During the year ended December 31, 1999, in connection with the grant of
stock options to employees, we recorded deferred stock compensation totaling
$0.3 million, representing the difference between the deemed fair value of our
common stock for financial reporting purposes on the date these options were
granted and the exercise price. This amount is included as a reduction of
stockholders' equity and is being amortized over the vesting period of the
individual options, generally four years, using the straight line method.
Because stock options subject to deferred compensation were primarily granted
in the second half of 1999, the amortization of deferred stock compensation was
not material for the year ended December 31, 1999. We anticipate that
additional deferred compensation will be recorded for options granted after
December 31, 1999 and expect to record an amount of approximately     for stock
options granted from January 1, 2000 to March 31, 2000.

                                       21


                             Results of Operations

Years Ended December 31, 1999, 1998 and 1997

  Revenues

  Contract revenue from collaborations were $4.2 million in 1999, $3.2 million
in 1998 and $1.7 million in 1997. The increase in 1999 was primarily due to the
initiation of our Sankyo collaboration signed in March 1999. The increase in
1998 revenue was primarily due to the initiation of a development agreement
with Taiho Pharmaceuticals in late 1997, substantially all of which was earned
in 1998. Contract revenue recognized related mainly to collaboration revenues
earned from Sanwa, Sankyo and Taiho in 1999 and Sanwa and Taiho in 1998 and
1997. Contract revenues from Sanwa, a related party, were $1.5 million, $1.8
million and $2.0 million in 1999, 1998 and 1997 respectively. We expect
contract revenue from collaborations to constitute substantially all of our
total revenues for the foreseeable future. For details of the Company's revenue
recognition policy, refer to Note 1 to the financial statements.

  Research and development expenses

  Research and development expenses were $9.5 million in 1999, $8.0 million in
1998 and $8.1 million in 1997. The 1999 increase was primarily attributable to
increased costs associated with the filing of an IND for TLK286, a small
molecule product candidate being developed for the treatment of chemotherapy-
resistant cancers. We expect research and development expenses to increase with
the advancement of our unpartnered product candidates into later stages of
development.

  General and administrative expenses

  General and administrative expenses, which consist primarily of salaries,
consulting services and rent, were $2.2 million in 1999, $2.1 million in 1998
and $2.5 million in 1997. This decrease of $0.4 million from 1997 to 1998 was
primarily attributable to a reduction in the number of employees. We expect
that general and administrative expenses will increase in the future to support
the continued growth of our research and development efforts and to accommodate
operating as a public company.

  Net interest income

  Net interest income was $0.4 million in 1999, $0.3 million in 1998 and $0.3
million in 1997. Interest income results from our interest on short-term
investments, while interest expense is associated with capital lease
obligations and other long-term liabilities.

  Liquidity and capital resources

  Cash, cash equivalents and short-term investments totaled $7.6 million at
December 31, 1999. We have financed our operations from inception primarily
through the private placement of equity securities, revenue from collaborative
agreements, interest earned on short-term investments and equipment lease line
financings. As of December 31, 1999, we had raised $56.7 million from the sale
of equity securities, including $11.0 million from collaborators, and received
$11.1 million in non-equity payments from collaborators. In 1998, we received
net proceeds of $10.3 million from private financing activities. In 1997, we
received net proceeds of $7.1 million from private financing activities.

  As of December 31, 1999, $0.2 million in equipment loans were secured by our
equipment. The loans bear interest at 8% and are due in 2000.

                                       22


  Net cash used in operating activities in 1999 was $5.9 million. Net cash used
in operating activities in 1998 was $5.8 million. Our collaborators paid us a
total of $4.5 million in 1999, of which $2.3 million was deferred as of
December 31, 1999.

  Net cash provided by investing activities in 1999 was $6.3 million and net
cash used in investing activities was $2.6 million in 1998. Net cash used in
financing activities in 1999 was $0.6 million and net cash provided by
financing activities in 1998 was $9.8 million.

  We believe our existing cash resources, plus the proceeds of this offering
and anticipated proceeds from corporate collaborations, will be sufficient to
satisfy our anticipated cash requirements through at least 18 months. For the
next several years, we do not expect the cash generated from our operations to
generate the amounts of cash required by our future cash needs. We expect to
finance our future cash needs through the sale of equity securities, strategic
collaborations and possibly debt financing. Our future capital uses and
requirements depend on numerous factors, including the following:

  . the progress and success of preclinical and clinical trials of our
    product candidates;

  . the progress and number of research programs in development;

  . the costs and timing of obtaining regulatory approvals;

  . our ability to establish, and the scope of, our new collaborations;

  . our ability to meet the milestones identified in our collaborative
    agreements which trigger payments; and

  . the costs and timing of obtaining, enforcing and defending our patent and
    intellectual property rights.

                          Disclosure About Market Risk

  The primary objective of our investment activities is to preserve principal
and at the same time maximize income we receive from our investments without
significantly increasing risk. We maintain our portfolio of cash equivalents
and short-term investments in a variety of securities, including commercial
paper, money market funds, government and non-government debt securities. In
1998 and 1999, we maintained an investment portfolio primarily in depository
accounts. Due to the short-term nature of these investments, we have concluded
that there is no material market risk exposure. In the future, we may invest
the proceeds of this offering in financial instruments with longer maturities.

  We have operated primarily in the United States and all funding activities
with our collaborators to date have been made in U.S. dollars. Accordingly, we
do not have any exposure to foreign currency rate fluctuations.

                                       23


                                    BUSINESS
- --------------------------------------------------------------------------------

                                    Overview

  Telik is a biopharmaceutical company working to discover, develop and
commercialize small molecule therapeutics to treat diseases for which there is
significant demand for new therapies. Our most advanced product candidates are
for the treatment of cancer and diabetes. All of our product candidates were
discovered using our proprietary technology called Target-Related Affinity
Profiling, or TRAP, which enables us to discover product candidates faster and
more efficiently than with alternative technologies such as ultra high-
throughput screening, or UHTS.

  Our most advanced product candidate, TLK286, is a chemotherapeutic drug for
the treatment of cancers, such as breast, colon, ovarian and lung, that have
shown resistance to standard cancer drugs. TLK286 entered clinical trials in
January 2000. Our second cancer product candidate, TLK199, is for the treatment
of the depletion of white blood cells, or neutropenia, which is a toxic side
effect of cancer treatment. TLK199 appears to act by the same cellular
mechanism as G-CSF, the current standard therapy, but has the advantages of
being a small molecule drug. TLK199 is expected to enter clinical testing in
the second half of 2000. We have retained rights for the worldwide
commercialization of TLK286 and TLK199.

  Our third product development program has identified a proprietary class of
insulin receptor activators for the treatment of Type 2, or adult onset,
diabetes. These product candidates activate insulin signaling and lower blood
sugar by a mechanism that is different from that of currently available
diabetes drugs. The first of our insulin receptor activators, TLK17411, is in
preclinical development. We granted commercialization rights to a partner for
most of Asia and have retained these rights for the rest of the world.

  We have also developed a portfolio of preclinical programs in the areas of
cancer, diabetes, inflammatory diseases and stroke. In each of these programs,
we have used our TRAP technology to identify pharmaceutically active small
molecules. The most advanced of the active compounds from these programs have
shown efficacy in animal models of their respective disease targets.

  Our success in identifying product candidates has resulted from the use of
TRAP, our proprietary drug discovery technology. We have used TRAP to rapidly
and efficiently identify active small molecules relevant to a variety of
disease states. Since TRAP reduces the need for conventional high-throughput
screening and the associated need for large libraries of compounds, automation,
assay technology and target licensing, TRAP offers a solution to the current
bottleneck in drug discovery caused by the increased number of new targets that
has resulted from advances in genomics and related fields. In addition to using
TRAP for our internal drug discovery programs, we have entered into TRAP-based
technology collaborations with third parties.

                                 Telik Strategy

  Key elements of our strategy are to:

  Develop small molecule drugs for major disease areas. We intend to develop
small molecule drugs to address unmet needs in the areas of cancer, diabetes,
inflammatory disease and stroke. The number of patients with these diseases has
been increasing due primarily to the aging population. This has led to a
growing demand for new drugs that offer competitive advantages over existing
products, such as improved effectiveness and reduced side effects. The
advantages of small molecule drugs over therapeutic proteins include the ease
of manufacturing and administration, the potential for oral dosing and
applicability to a wider range of disease targets, including those inside the
cell. Small molecule drugs comprise more than 95% of the pharmaceutical market.

                                       24


  Retain significant commercial rights to our product candidates. We will seek
to retain significant commercial rights to our product candidates by conducting
clinical development activities at least through initial proof of efficacy in
humans. Since the development process for cancer drugs is relatively efficient
and well defined, the cost and time required to bring new drugs to market is
significantly less than that required for other therapeutic categories,
permitting us to retain significant commercialization rights through completion
of clinical trials. In disease areas that require larger and longer clinical
trials, such as diabetes, we will share the risks and costs of development by
partnering these programs before completion of pivotal trials, which will
require granting significant commercialization rights to our collaborators.

  Our goal is to develop and commercialize our cancer product candidates in
North America. We believe that the hospital-based cancer market in the United
States is readily accessible by a limited sales and marketing presence due to
the concentrated market of prescribing physicians coupled with the substantial
unmet therapeutic needs. As appropriate, we will establish collaborations with
multinational pharmaceutical companies to assist in the commercialization of
our product candidates.

  Select targets strategically. We believe that we can apply our drug discovery
technology to virtually any protein target. We regularly review the progress of
scientific and clinical research in important disease areas to identify targets
with commercial promise. By careful selection of targets, we intend to develop
product candidates with a clear path to regulatory approval and the potential
to show early evidence of clinical efficacy. This strategy will allow us to
reduce the risk inherent in drug discovery and accelerate the commercialization
of our drug candidates.

  Use TRAP to sustain a pipeline of drug candidates. Because our TRAP platform
technology allows us to rapidly and efficiently identify small molecules active
against potential disease targets, we have the capacity to examine a large
number of targets in order to select those with therapeutic promise. We will
seek to use this platform to provide a stream of promising future development
candidates.

  Leverage and expand the use of TRAP. We may seek selected additional partners
for TRAP collaborations. These collaborations will not limit our internal
efforts and may strengthen our TRAP technology by providing information on the
performance of our panel proteins. Any significant revenues from these
collaborations are more likely to be in the form of milestone and royalty
payments, rather than up front payments or funded research.

                                       25


                               Product Candidates

  Our efforts are concentrated in four major diseases: cancer, diabetes,
inflammatory diseases and stroke. Our two most advanced product candidates are
for cancer treatment. TLK286, which entered clinical trials in January 2000, is
being developed for the treatment of chemotherapy-resistant cancers. TLK199, a
small molecule that accelerates recovery from chemotherapy-induced depletion of
white blood cells, or neutropenia, represents a promising new adjunctive
therapy. We have discovered novel insulin receptor activators for the treatment
of Type 2 diabetes.

  Application of our TRAP technology has led to a pipeline of both potential
product candidates and earlier stage research programs. The following table
summarizes key information about these programs.



         Product                 Clinical                 Development            Commercialization
        Candidate               Indication                  Status                     Rights
- ---------------------------------------------------------------------------------------------------
                                                                      
  Cancer
  TLK286                 Chemotherapy-resistant   Phase I                      Worldwide
  Targeted               cancers, including       .         phase I clinical
  chemotherapeutic drug  breast, lung, ovarian,             trial commenced
                         colon and sarcoma                  1/00

  TLK199                 Chemotherapy-induced low Pre-IND                      Worldwide
  Bone marrow stimulant  white blood cell count,  .         IND-enabling
                         or neutropenia                     studies initiated
                                                            6/99
                                                  . clinical grade material
                                                    prepared 1/00

  IGF-1 inhibitor        Prostate cancer          Lead optimization            Worldwide
                                                  .                   small
                                                                      molecule
                                                                      inhibitors
                                                                      discovered
- ---------------------------------------------------------------------------------------------------
  Diabetes
  Insulin-independent    Type 2 diabetes          Candidate nomination/lead    Worldwide except
  insulin receptor                                optimization                 Japan and most other
                                                                               Asian countries
  activators                                      . oral activity in animal
                                                    models
                                                  . preclinical and safety
                                                    assessment initiated

  Insulin-dependent      Type 2 diabetes          Candidate nomination/lead    Worldwide except
  insulin receptor                                optimization                 Japan and most other
  activators                                                                   Asian countries
                                                  . activity in animal models
                                                  . preclinical and safety
                                                    assessment initiated
- ---------------------------------------------------------------------------------------------------
  Inflammatory disease
  MCP-1 antagonist       Rheumatoid arthritis,    Lead optimization            North and South
                         asthma atherosclerosis,  .                   small    America and jointly
                         multiple sclerosis                           molecule in Europe
                                                                      inhibitors
                                                                      discovered
                                                  . activity in animal models

  MIP-1 alpha inhibitor  Rheumatoid arthritis,    Lead optimization            Worldwide
                         multiple sclerosis       .                   small
                                                                      molecule
                                                                      inhibitors
                                                                      discovered

  IL-8 inhibitor         Rheumatoid arthritis,    Lead optimization            Worldwide
                         nephritis, psoriasis     .                   small
                                                                      molecule
                                                                      inhibitors
                                                                      discovered
- ---------------------------------------------------------------------------------------------------
  Stroke
  Caspase-3 inhibitor    Stroke                   Lead optimization            Worldwide
                                                  .                   small
                                                                      molecule
                                                                      inhibitors
                                                                      discovered


                                       26


                          Product Development Programs

Cancer

  Our two most advanced product candidates, TLK286 and TLK199, are being
developed to treat serious cancers for which there is significant demand for
new therapies. Cancer is the second leading cause of death in the United
States. It is estimated that 1.2 million people will be diagnosed with cancer
in the United States this year and more than 555,000 of these people will die
of their disease. The five-year survival rates for patients with cancers that
have spread from their original site are poor. For example, after spread of the
cancer, only 13% of patients with colorectal cancer survive, only 12% with lung
cancer and only 21% with breast cancer. These poor survival rates reflect the
limitations of current treatments and the development of resistance to
available treatments. In addition, current treatments are often associated with
severe toxic side effects.

  TLK286, a small molecule product candidate to treat chemotherapy resistant
cancers, entered phase I clinical trials in January 2000. Our second cancer
product candidate, TLK199, is being developed for the treatment of the
depletion of white blood cells, or neutropenia, a toxic side effect of
chemotherapy. TLK199 is scheduled to enter phase I clinical trials at the end
of 2000.

TLK286--tumor-activated chemotherapeutic drug

  Overview

  TLK286 is a small molecule product candidate we are developing for the
treatment of cancers that have resisted standard chemotherapeutic drugs. TLK286
binds to glutathione S-transferase, or GST, a protein known to play an
important role in the development of resistance to commonly used
chemotherapeutic drugs. GST initiates a series of events in a cell responsible
for the inactivation of a variety of drugs and toxins and their subsequent
removal from the body. In a person with a cancer, GST also functions to break
down chemotherapeutic drugs administered for treatment. If a person's cancer
has increased GST levels either initially or following exposure to
chemotherapeutic drugs, GST will limit the effectiveness of treatment by
breaking down the chemotherapeutic drug before it can kill cancer cells.

  GST P1-1 is a type of GST that is elevated in many cancers and is often
further elevated by treatment with standard chemotherapeutic drugs. When TLK286
binds to GST P1-1, it releases a compound with a proven mechanism of killing
cancer cells. Thus, in contrast to the usual situation where GST is involved in
the destruction of chemotherapeutic drugs, GST activates TLK286 when it reaches
its cellular target. In this way, TLK286 kills cancer cells by utilizing the
same mechanism that normally deactivates chemotherapeutic drugs.

  Preclinical Studies

  Preclinical studies suggest that TLK286 may have a more favorable safety and
efficacy profile than that of standard chemotherapeutic drugs. We attribute
this to its mechanism of activation. Since GST P1-1 activity is often increased
in tumor tissues compared to normal tissues, TLK286 activation is further
enhanced in tumors than in normal tissues. TLK286 activation is further
enhanced in resistant tumors in which GST P1-1 activity is further elevated.
Thus, activated TLK286 concentrates in parts of the body where cancer is
present.

  TLK286 reduced the growth of human cancer cell lines and biopsy specimens
derived from tumors of the breast, colon, lung, ovary and bone marrow and from
melanomas and, in mouse models of human cancer, suppressed tumor growth. The
efficacy of TLK286 against tumor cell lines

                                       27


was enhanced in those cell lines selected for drug resistance and exhibiting
increased levels of human GST P1-1. For example, TLK286 showed an improved
therapeutic effect in mouse models of human colon cancer cells that had been
made resistant to a common chemotherapeutic drug called doxorubicin and have
elevated levels of GST P1-1.

  Development Strategy

  In December 1999, we filed an IND with the FDA for permission to test TLK286
in advanced cancer patients. In January 2000, we initiated a phase I clinical
trial of TLK286 in 36 patients with advanced solid tumors or non-Hodgkin's
lymphoma which are unresponsive or for which no standard therapy is available.

  The purpose of this phase I clinical trial is to determine the safety of
TLK286 by finding the maximum tolerated dose and principal toxic side effects.
In addition, we will also collect information on the relationship of GST P1-1
activity levels and tumor response. Patient responses will be assessed after
two cycles of treatment, or six weeks. Patients showing an objective clinical
benefit may continue to receive TLK286 until the cancer progresses or
unacceptable toxicity occurs. We intend to complete this study in the second
half of 2000.

  Following completion of the phase I clinical trial, we intend to conduct
phase II clinical trials in up to 50 patients to confirm the safety and study
the antitumor activity of several doses and schedules of administration of
TLK286. If successful, we intend to begin confirmatory phase III clinical
trials which are expected to compare TLK286 to standard therapies in those
chosen cancer types.

  Cancer types under consideration include those which are not responsive, or
are refractory, to standard therapy. These cancers include ovarian, colon,
lung, breast and sarcoma, as well as refractory non-Hodgkin's lymphoma. We have
chosen these cancer types because they have high levels of GST P1-1 and
generally require smaller and shorter trials. These cancers may also be
candidates for accelerated regulatory review, because no effective alternative
therapies are available. If we obtain approval in these refractory indications,
we will expand the development program to study TLK286 in earlier stages of
these diseases as well as in additional cancer types.

  We have retained worldwide commercial rights to TLK286 and intend to
commercialize TLK286 in the North American market. At the appropriate time, we
will select a collaborator in other territories with capabilities in
manufacturing, sales and marketing.

TLK199--Bone marrow stimulant as an adjunct for cancer therapy

  Overview

  TLK199 is a small molecule product candidate that is designed to increase
white blood cell counts in cancer patients undergoing chemotherapy. In addition
to killing cancer cells, chemotherapeutic drugs kill rapidly dividing normal
cells. These include normal cells found in bone marrow that may eventually
become white blood cells capable of fighting infection. Lowered levels of a
type of white blood cells, called neutrophils, cause a condition called
neutropenia. Neutropenia renders the already weakened cancer patient
susceptible to life-threatening infections. Granulocyte colony stimulating
factor, or G-CSF, is the current standard therapy for the treatment of
neutropenia, since it accelerates the recovery of white blood cells to a normal
level.

  G-CSF acts by binding to a receptor protein on the surface of the cell and
activating a signaling pathway within the cell. This signal causes white blood
cells in the bone marrow to divide and mature, increasing the number of white
cells in the blood capable of fighting infection. TLK199 acts upon the same
signaling pathway that is activated by G-CSF.

                                       28


  Preclinical Studies

  TLK199 reduced the duration of neutropenia in animals treated with a standard
cancer drug. The reduction was similar in degree and duration to that seen with
G-CSF. In normal animals, TLK199 also increased the number of white cells in
the blood to an extent similar to that produced by G-CSF. In experiments using
human bone marrow, TLK199 caused white blood cells to divide and mature.

  Development Strategy

  TLK199 is undergoing preclinical testing to support initiation of clinical
trials. We intend to file an IND with the FDA for TLK199 in the second half of
2000. In the phase I clinical trial, we intend to determine the safety and
blood levels, or pharmacokinetics, of TLK199 in healthy volunteers. We will
also measure the enhancing effects of TLK199 on the white blood cell response.

  Our phase II program will be designed to confirm the white blood cell
elevating effects of TLK199 in patients receiving cancer chemotherapeutic drugs
that cause severe neutropenia. In this study, we will look at the ability of
TLK199 to reduce the duration and intensity of neutropenia, which is correlated
with the risk of infectious complications. We expect to conduct this study with
75 patients undergoing a variety of standard chemotherapy regimens. Phase III
clinical trials will be designed to compare the efficacy of TLK199 with Amgen's
therapeutic protein version of G-CSF, known as Neupogen. We also intend to
study additional diseases that are known to benefit from the stimulation of
white blood cell production.

  TLK199 is expected to offer the advantages of a small molecule drug over a
therapeutic protein, including ease of manufacturing and the potential for oral
administration. Although Amgen reported worldwide sales of Neupogen of over
$1.3 billion in 1999, we believe its broader use is limited by its expense and
lack of oral administration. The low cost of production and potential oral
availability of TLK199 may allow us to offer a product that is attractive to
the current market for drugs that stimulate the production of white blood
cells. We have retained worldwide commercial rights to TLK199 and intend to
commercialize TLK199 in the North American market. At the appropriate time, we
will select collaborators in other territories with capabilities in
development, sales and marketing.

Diabetes

  We have discovered and are developing proprietary orally active small
molecule insulin receptor activators for the treatment of Type 2 diabetes,
which represents 90-95% of all cases of diabetes. Diabetes is a major health
problem with over 170 million people estimated to be afflicted worldwide.
Diabetes is the leading cause of serious coronary disease, adult blindness,
lower limb amputations and serious kidney disease. Diabetes results from the
inability of insulin, a hormone produced by the pancreas, to regulate blood
sugar levels. In Type 2 diabetes, the loss of blood sugar regulation is caused
by a decreased ability of insulin to activate its protein receptor combined
with a relative insulin deficiency.

  Two large international clinical studies, the Diabetes Control and
Complications Trial and the United Kingdom Prospective Diabetes Study, have
confirmed that blood sugar control is a key factor in the prevention of the
long-term complications of diabetes, including eye and kidney disease. As a
result of these studies, doctors are aggressively treating patients' blood
sugar levels with a variety of oral drugs. This situation has increased the
demand for more effective drugs to treat diabetes.

                                       29


TLK17411--Insulin receptor activators

  Overview

  Using our TRAP technology, we have discovered a proprietary family of small
molecule product candidates that bind to the insulin receptor and, like
insulin, cause the receptor to activate and initiate a sequence of events
called insulin signaling that lowers sugar levels in the blood by facilitating
the entry of sugar into muscle and liver cells where it is metabolized. Results
from animal models of diabetes suggest that these compounds may allow more
sensitive control of blood sugar levels and may delay the need for insulin
treatment. Our leading product candidate in this group is TLK17411.

                                   [GRAPHIC]

  Preclinical Studies

  Preclinical studies have provided evidence that TLK17411 can initiate or
facilitate insulin signaling. In laboratory experiments and in four animal
models of diabetes, we have shown that TLK17411 enhances insulin signaling. In
one animal model, treatment with a single oral dose of TLK17411 lowered blood
sugar by more than 25% and kept it suppressed for 24 hours. Its effectiveness
was maintained for a longer period of time with single daily doses. We have
shown that TLK17411 does not activate similar receptors or other signaling
pathways in these cells, a positive property that suggests that TLK17411 may
not have significant side effects.

  Some members of the TLK17411 family of compounds show activity only in the
presence of insulin while others activate the glucose receptor in the absence
of insulin. Each profile has potential advantages for the treatment of Type 2
diabetes. The insulin-dependent profile could produce more sensitive control of
blood sugar levels, since the drug would be most active when blood sugar
levels, and therefore insulin levels, are increased. The second profile may be
more advantageous in later stage Type 2 diabetes, when insulin release is more
severely impaired and insulin injections are required. A drug with this profile
of activity could delay the need for injected insulin.

                                       30


  We have shown that members of the TLK17411 group are sufficiently potent to
allow oral administration. Furthermore, they do not cause genetic mutations in
standard tests, which is a prerequisite for a product candidate to proceed for
further development.

  Development Strategy

  We anticipate selecting a product candidate from the family of insulin
receptor activators by the end of 2000 and initiating the necessary preclinical
testing to support the filing of an IND with the FDA and advancement into phase
I clinical testing.

  In the phase I clinical trial, we intend to evaluate the safety,
pharmacokinetics and blood sugar lowering effects of the product candidate in
healthy volunteers. In a second phase I clinical trial, we intend to evaluate
the effects of multiple doses of the drug in patients with Type 2 diabetes.

  Our collaborator, Sanwa, has commercialization rights in Japan and most other
Asian countries. We have retained those rights in the rest of the world. We
intend to retain commercial rights in North America, and we will seek a
collaborator to lead the commercial development program in the remaining
territories.

                          Research Discovery Programs

  In addition to generating our current product portfolio, TRAP has allowed us
to build our research pipeline with product candidates against targets in
cancer, diabetes, inflammatory diseases and stroke. We have chosen to pursue
those protein targets that have engendered a high level of interest in the drug
discovery community, address important unmet clinical needs and whose
modulation will have a beneficial effect in treating a given disease.

IGF-1 receptor inhibitor for cancer

  Insulin-like growth factor-1, or IGF-1, is an important protein target for
cancer therapy. Blood levels of IGF-1 are increased in prostate cancer patients
and represent a significant risk factor for the development of prostate cancer
in healthy males. Increases in the amount of the IGF-1 receptor predict a poor
prognosis in breast cancer. Using TRAP technology, we have identified two
families of small molecules that inhibit the interaction of IGF-1 with its
receptor. Compounds from each family have been shown to inhibit the growth of
cancer cells.

Chemokine antagonists for inflammatory diseases

  Inflammation is an important response of the body to injury and infection. If
the inflammation becomes excessive or prolonged, it can lead to pathological
conditions, including asthma, inflammatory bowel disease, multiple sclerosis,
psoriasis, rheumatoid arthritis and septic shock. An early step in the
inflammatory response is the attraction of white blood cells, or leukocytes,
from the circulatory system to damaged or infected tissue by messenger
molecules called chemokines.

  Our research has identified inhibitors selective for three important
chemokine mediators of the inflammatory response: MCP-1, MIP-1(alpha) and IL-8.
These inhibitors block the interaction of each chemokine with its protein
receptor and, in the most advanced of these programs, are active in an animal
model of inflammatory disease.

Caspase-3 inhibitors for stroke

  The major cause of stroke is lack of blood flow, or ischemia, in a region of
the brain. Loss of blood flow is directly responsible for the loss of brain
cells. An additional loss of cells occurs over

                                       31


the next few hours to days, through a process initiated by the cells
themselves, called apoptosis. This secondary loss of cells increases the
disability produced by the stroke. Apoptosis is carried out by specialized
proteins in the cell, called caspases, and particularly, caspase-3. We have
identified small molecules that selectively inhibit caspase-3 and prevent
apoptosis in cells.

                                TRAP Technology

  Our TRAP technology is designed to rapidly and efficiently identify small
molecule drug candidates that act on disease related protein targets.

Background

  Small Molecule Drugs, Protein Targets and Disease. All drugs interact with
molecules in the body called proteins. Disease results from the abnormal
production and function of proteins. Drugs restore normal protein production or
function, either by acting directly on disease-related proteins or by acting on
other proteins in a compensatory manner. Small molecule drugs are a class of
drugs that remain the preferred treatment for most diseases, because they may
be administered orally and, unlike the protein class of drugs, act on targets
both external and internal to the cell. Small molecule drugs are particularly
appropriate for the treatment of chronic diseases that require the daily
administration of medications over many years. Historically, the opportunity to
commercialize small molecule drugs has been limited by the difficulty in
discovering safe and effective small molecules.

  The Explosive Growth of New Protein Targets. The entire content of human DNA,
known as the human genome, contains an estimated 100,000 genes, each of which
contains genetic instructions for producing a unique protein. Because proteins
are drug targets and genes contain the instructions for making proteins, a
massive government and private effort was undertaken in the 1980s to sequence
the human genome with the hope that the comprehensive knowledge of the human
genome would reveal the molecular cause for all diseases. The sequencing of the
human genome is now nearing completion. Since most diseases involve complex
interactions between proteins, we believe the number of potential protein
targets for disease treatment is very large and will overwhelm the ability of
current technologies to identify small molecule drugs.

  Drug Discovery Challenges Created by the Explosive Growth of New Protein
Targets. Ultra high-throughput screening, or UHTS, is the dominant technology
used to identify compounds active against protein targets. UHTS allows a large
number of compounds, up to millions, to be screened against tens to hundreds of
targets per year. The rate-limiting step in UHTS is usually developing the
test, or assay, that will provide analytical information about the activity of
compounds against the protein target. The effort and expense required for assay
development, combined with the resource outlay necessary to execute millions of
assays, tend to limit the application of UHTS to targets for which involvement
in disease has been confirmed. The biological systems used in UHTS assays are
highly simplified and may not give an accurate representation of how the target
functions in an animal. Furthermore, the size of the library of compounds
necessary to represent an adequate sampling of the compounds that could be
synthesized for screening might exceed the screening capacity of even UHTS. The
limitations of UHTS potentially create a critical bottleneck, since both
validating a disease related protein target and initiating the process of drug
discovery begins with the identification of a small molecule with an affinity
for the protein target.

The TRAP solution

  Our proprietary Target-Related Affinity Profiling, or TRAP, technology offers
solutions to the two major challenges facing drug discovery: the explosive
growth in the number of new protein

                                       32


targets generated by the advances in genomics and the intrinsic limitations of
the UHTS approach. TRAP offers several competitive advantages over UHTS,
because it is able to accommodate thousands, rather than hundreds, of targets,
is sufficiently efficient to screen unproven targets for the purpose of
validation and avoids the use of highly simplified assays.

  We have discovered that there are a limited number of ways that proteins
interact with small molecules and that these interactions can be simulated
using a carefully selected panel of diverse proteins. TRAP takes advantage of
this discovery to profile the interactions of small molecules with proteins
using a panel of less than 20 proteins selected for their distinct patterns of
interacting with small molecules. We believe that our panel of proteins
simulates, either individually or in combination, most of the significant
interactions between a small molecule and a protein. Furthermore, TRAP measures
the diversity of compounds in a way that cannot be explained on the basis of
chemical structure alone. Compounds that are structurally similar can have very
different affinities for proteins and other biological properties, and,
conversely, compounds that are structurally diverse may have similar affinities
for proteins and other biological properties.

  By comparing the relative strengths of the interaction of a small molecule
with each panel protein, a protein affinity profile, or fingerprint, is
produced for the small molecule. One type of assay we use, called a binding
assay, measures the interaction of a panel protein with a specially designed
binding partner, or ligand, in the presence of a small molecule. If the small
molecule has affinity for the same site on the panel protein as the ligand, the
amount of ligand that binds will be reduced. This decrease in the amount of the
ligand that binds is part of the small molecule's fingerprint.

  Using these fingerprints, we select a small subset of compounds, which we
call the training set, that is sufficiently diverse in its protein recognition
characteristics to represent our entire collection, or library, of small
molecules. We screen this training set against the target of interest and use
the resulting data to predict the type of small molecule-protein interactions
present in the target. A model of small molecule interactions with the target
is generated by mathematically combining the individual interactions of TRAP
panel proteins, where the panel proteins to be included in the model are
determined by the affinities of the initial subset of compounds for the target.
We can then select from the library for assay those compounds that prefer these
types of interactions. We have developed a set of computational tools, in the
form of chemoinformatics algorithms, which are used to scan the library for
patterns of protein affinity, since these patterns appear to correlate best
with biological activity. The majority of active compounds in our library can
be identified after screening as few as 200 compounds.

  We have used TRAP to assemble our library of small molecules, which is
enriched by compounds that interact with proteins in a selective fashion and
contains multiple compounds that can undergo each mode of protein interaction.
We believe that this process creates a small molecule library with a greater
likelihood of containing a compound that interacts with any specified protein,
thus having a higher probability of generating drug candidates than a
conventionally or randomly assembled library. As a consequence, TRAP identifies
those small molecules with a higher probability of being drug candidates from
within the universe of possible compounds, allowing their assembly into a
manageable drug discovery library, by using their protein interaction
characteristics. All of the known drugs that we have examined lie within the
bounds of the library defined by TRAP.

  The ability of TRAP to identify active compounds after screening only a few
hundred samples overcomes many of the limitations of UHTS. TRAP does not
require assays capable of screening millions of compounds, thereby decreasing
the time and resources necessary for assay development. TRAP permits the
selection of a given target of interest from a much wider universe of targets
by reducing the need to acquire targets and assay technologies and allows more
physiologically relevant assay systems to be used. In addition, TRAP eliminates
the need for large compound collections and

                                       33


sophisticated and expensive automation to support them, further lowering the
financial barrier to screening and permitting its application to emerging
biopharmaceutical companies. Finally, the overall efficiency and economy of
TRAP allow multiple targets to be pursued simultaneously and permit the
screening of higher risk, but potentially more valuable, targets.

  In summary, TRAP technology:

  . models protein targets to identify drug candidates faster and more
    efficiently;

  . creates a more drug-like small molecule library;

  . provides a search engine for identifying active compounds;

  . permits the use of more complex and physiologically relevant assays;

  . operates on numerous targets simultaneously;

  . gives access to a broader universe of targets;

  . allows the pursuit of riskier, but potentially more valuable, targets;

  . lowers the financial barrier for screening; and

  . accommodates thousands rather than hundreds of targets.

                          Collaborative Relationships

  We have established a number of joint discovery programs with other
pharmaceutical, biotechnology and genomics companies. These collaborations
exploit our TRAP technology platform and have the potential to identify new
product development and commercialization opportunities either independently or
pursuant to expanded collaborations. In addition, these collaborations have
provided funding for our internal research and development programs.

  These collaborations include the following:

Sanwa

  Diabetes Collaboration Agreement

  In December 1996, we entered into a collaboration agreement with Sanwa
establishing a program to discover and commercialize compounds that act on the
insulin signal transduction pathway and are useful for the treatment of
diabetes and insulin resistance. In exchange for Sanwa's payment of an initial
fee and provision of research funding, we are employing our compound library,
TRAP technology, and other drug discovery technologies to identify and optimize
drug development candidates. The research portion of the collaboration will
terminate on December 20, 2000.

  Under the collaboration agreement and a related license agreement, Sanwa has
an exclusive, royalty-bearing license to commercialize human therapeutic
products arising from the collaboration in Japan, Korea, Taiwan and China.
Sanwa will make payments to us upon the achievement of specified milestones and
will share its development data with us. In all other countries, we have rights
to commercialize products containing compounds identified in the research
collaboration, subject to obligations to Sanwa to share preclinical and
clinical data. We also have an option to acquire from Sanwa a royalty-bearing
license to develop and commercialize, outside the Sanwa territory, other
products identified by Sanwa arising from the collaboration.

  Screening Services Agreement

  In December 1996, in addition to the diabetes collaboration agreement, we
entered into a screening services agreement with Sanwa in which we agreed to
employ our proprietary TRAP

                                       34


technology to identify compounds that are active against biological targets
identified as disease related by Sanwa. In September 1997, and October 1998,
this agreement was amended to increase the number of targets, extend the term
of the agreement and include the optimization of two lead compounds, each for a
period of two years. We are currently conducting the first optimization of a
lead compound identified through the use of our TRAP technology. We are
obligated to continue optimization of this or substitute active compounds
through June 2001. Under the agreement, Sanwa has exclusive rights in Japan,
Korea, Taiwan and China to commercialize the active compounds and inventions
relating to these compounds. We have equivalent exclusive rights in North and
South America. Elsewhere in the world, we will share with Sanwa all revenues
arising from the active compounds and related inventions. The agreement will
terminate on December 20, 2006.

  Equity Investment

  In connection with these agreements, Sanwa has invested an aggregate of $11.0
million in Telik, as more specifically described in the "Related party
transactions" section.

Sankyo

  In March 1999, we entered into an agreement with Sankyo. In exchange for
Sankyo's payment of a series of upfront fees, we are using our TRAP technology
to identify compounds that are active against any of up to ten targets selected
by Sankyo. Under the agreement Sankyo has an option to acquire an exclusive,
worldwide license to commercialize products incorporating either compounds from
our library with activity against the disease target or derivatives of these
compounds. If Sankyo exercises the option, we are obligated to negotiate a
separate royalty-bearing license agreement with Sankyo. If Sankyo does not
exercise its option with respect to a particular target or if we are unable to
reach agreement on the license during the specified period, Sankyo's exclusive
rights with respect to such target will terminate and we will be free to pursue
research and development with respect to the target on our own or with third
parties. The agreement will terminate on the later of March 24, 2002 or the end
of the period for entering into license agreements.

COR Therapeutics

  In January 1999, we entered into an agreement with COR to discover active
molecules for up to five disease targets. In January 2000, we extended the term
through at least January 12, 2001 at which time the agreement will terminate,
unless COR selects a disease target for continued research and development. We
are using our TRAP technology to identify compounds that are active against the
disease targets selected by COR.

  Under the agreement, COR has an exclusive license to develop, make and
commercialize worldwide, other than Japan, China, Taiwan, Korea and certain
other Asian countries, products incorporating compounds derived from our
library that have activity against those disease targets that COR selects for
continued research and development. We have both an exclusive license to
commercialize products outside the COR territory and an exclusive, worldwide
license to commercialize products incorporating compounds derived from the
Telik library with activity against those disease targets that COR does not
select. Each party may develop and commercialize these products independently
or with a third party, and each party will pay the other party royalties on
such products. In addition, COR will pay us a license fee and additional fees
upon achievement of specified development milestones.

Scios

  In February 1999, we entered into an agreement with Scios to employ our TRAP
technology to discover small molecules that display activity against a disease
target, chosen by Scios.

                                       35


  Under the agreement, Scios has an option to acquire an exclusive, royalty-
bearing license to commercialize worldwide, other than Japan, China, Taiwan,
Korea and certain other Asian countries, products incorporating compounds
derived from the Telik library with activity against the disease target. If
Scios exercises the option, we will receive a licensing fee, and potential
milestone and royalty payments and an exclusive, royalty-free license to
commercialize these products outside the Scios territory. The parties will
share data arising from their development of these products, and we may perform
development or compound optimization work on behalf of Scios. We will retain
all rights with respect to compounds for which Scios does not exercise its
option and, in the event that Scios does not satisfy certain diligence
requirements, we will receive an exclusive, worldwide, royalty-free license to
develop, make and commercialize the relevant products.

Genaissance Pharmaceuticals

  In February 1998, we entered into a research agreement with Genaissance
Pharmaceuticals. We amended this agreement in February 1999 to extend the term
of the agreement. Under the terms of the agreement, we are using our TRAP
technology to validate novel variants of the estrogen receptor through the
identification of compounds from our library that exhibit selective
pharmacological activity. We will jointly own the compounds or other
intellectual property rights arising from the collaboration and have agreed to
jointly seek a third party for a corporate partner to continue development of
these compounds. We will share research funding proportionate to our research
commitments and will share equally the other revenues received from any
resulting license agreements. The agreement will terminate if we have not
entered into a third party license agreement or otherwise agreed to a joint
development program by August 11, 2000. Upon termination, the parties are
obligated to consult with each other before independently developing the
jointly owned compounds and other intellectual property rights.

                      Patents and Proprietary Information

  Our success depends on our ability and the ability of our collaborators to
obtain patents for compounds, technologies and products resulting from the
application of these technologies, to defend patents once obtained, and to
maintain trade secrets both in the United States and foreign countries.
Accordingly, patents and other proprietary rights are an essential element of
our business. As of January 1, 2000, 36 patents based on our discoveries have
been granted in the United States and 56 abroad. In addition, more than 16
applications are pending in the United States and more than 79 abroad. Our
policy is to aggressively file patent applications to protect new chemical
entities, technology, other inventions and improvements to inventions that are
commercially important to the development of our business. Applications
pertaining to our core technology cover new chemical compounds, uses of
compounds, pharmaceutical compositions, formulations, methods of compound
preparation, methods of chemical classification, protein profiles of compounds
and computational methods to analyze these protein profiles.

  We also rely on trade secret information, technical know-how and innovation
to continuously expand our proprietary position. We require our employees and
consultants to execute non-disclosure and assignment of invention agreements on
commencement of their employment or engagement.

                                  Competition

  Competition in the pharmaceutical and biotechnology industries is intense.
Many pharmaceutical or biotechnology companies have products on the market and
are actively engaged in the research and development of products that are
competitive with our potential products. Many of these companies and
institutions, either alone or together with their collaborative partners, have
substantially greater financial, manufacturing, sales, distribution and
technical resources and more experience in research and development, clinical
trials and regulatory matters, than we do.

                                       36


                           Regulatory Considerations

  The manufacturing and marketing of our potential products and our ongoing
research and development activities are subject to extensive regulation by
numerous governmental authorities in the United States and other countries. In
the United States, pharmaceutical products are subject to rigorous review by
the FDA under the Federal Food, Drug and Cosmetic Act, the Public Health
Service Act and other federal statutes and regulations. Non-compliance with
applicable requirements can result in fines, recall or seizure of products,
total or partial suspension of production, refusal of the government to approve
marketing applications or allow us to enter into supply contracts and criminal
prosecution. The FDA also has the authority to revoke previously granted
marketing authorizations.

  Securing FDA approval requires the submission of extensive preclinical and
clinical data and supporting information to the FDA for each indication to
establish a product candidate's safety and efficacy. The approval process takes
many years, requires the expenditure of substantial resources, involves post-
marketing surveillance and may involve ongoing requirements for post-marketing
studies. The FDA may also require post-marketing testing and surveillance to
monitor the effects of approved products or place conditions on any approvals
that could restrict the commercial applications of these products. Product
approvals may be withdrawn if compliance with regulatory standards is not
maintained or if problems occur following initial marketing. With respect to
patented products or technologies, delays imposed by the governmental approval
process may materially reduce the period during which we will have exclusive
rights to exploit them.

  Preclinical studies involve laboratory evaluation of product characteristics
and animal studies to assess the initial efficacy and safety of the product.
The FDA under its Good Laboratory Practices regulations regulates preclinical
studies. Violations of these regulations can, in some cases, lead to
invalidation of the studies, requiring these studies to be replicated. The
results of the preclinical tests together with manufacturing information and
analytical data are submitted to the FDA as part of an Investigational New Drug
application, or an IND, which must be approved by the FDA before we can
commence clinical investigations in humans. Unless the FDA objects to an IND,
the IND will become effective 30 days following its receipt by the FDA.

  Clinical trials involve the administration of the investigational product to
humans under the supervision of a qualified principal investigator. Clinical
trials must be conducted in accordance with Good Clinical Practice, or GCP,
under protocols submitted to the FDA as part of the IND. In addition, each
clinical trial must be approved and conducted under the auspices of an
Investigational Review Board, or IRB, and with patient informed consent. The
IRB will consider, among other things, ethical factors, the safety of human
subjects and the possibility of liability of the institution conducting the
trial.

  Clinical trials are conducted in three sequential phases but the phases may
overlap. Phase I clinical trials may be performed in healthy human subjects or,
depending on the disease, in patients. The goal of the phase I clinical trial
is to establish initial data about the safety and tolerance of the product in
humans. In phase II clinical trials, in addition to safety, the efficacy of the
product is evaluated in limited patients with the target disease. Phase III
trials typically involve additional testing for safety and clinical efficacy in
expanded, large-scale, multi-center studies of patients with the target
disease.

  All of our contract manufacturers and we are required to comply with the
applicable FDA current good manufacturing practice regulations. Good
manufacturing practice regulations include requirements relating to quality
control and quality assurance as well as the corresponding maintenance of
records and documentation. Manufacturing facilities are subject to inspection
by the FDA. These facilities must be approved before we can use them in
commercial manufacturing of our products.

                                       37


  Outside the United States, our ability to market a product is contingent upon
receiving marketing authorization from the appropriate regulatory authorities.
The requirements governing the conduct of clinical trials, marketing
authorization, pricing and reimbursement vary widely from country to country.
At present, foreign marketing authorizations are applied for at a national
level, although within the European Union registration procedures are available
to companies wishing to market a product in more than one EU member state. If
the regulatory authority is satisfied that adequate evidence of safety, quality
and efficacy has been presented, a marketing authorization will be granted.

                                 Manufacturing

  We are using third party manufacturers to produce clinical supplies of TLK286
under the FDA's current Good Manufacturing Practices, or cGMP, regulations. We
are evaluating potential drug manufacturers to produce clinical supplies of
TLK199. In the insulin receptor activator program, we have developed
preparative routes to our lead compounds that would be suitable for their
commercial production.

  We intend to continue to use third-party contract manufacturers or corporate
collaborators for the production of material for use in preclinical studies,
clinical trials, manufacture of future products and commercialization. The
manufacture of our potential products for preclinical and clinical trials and
commercial purposes is subject to cGMP regulations promulgated by the FDA and
to other applicable domestic and foreign regulations.

                                   Employees

  As of March 30, 2000, we had a workforce of 36 full-time employees, 12 of
whom hold PhD or MD degrees, or both, and eight of whom hold other advanced
degrees. Of our total workforce, 27 are engaged in research and development and
nine are engaged in business development, finance and administration. None of
our employees are represented by a collective bargaining agreement, nor have we
experienced work stoppages. We believe that our relations with our employees
are good.

                                   Facilities

  Our facilities consist of approximately 20,680 square feet of research and
office space located at 750 Gateway Boulevard in South San Francisco,
California, that is leased to us until December 31, 2002. We have the option to
renew this lease for one additional period of five years. We believe our
existing facilities are adequate to meet our requirements through the year
2005.


                                       38


                        Scientific and Clinical Advisors

  We utilize scientists and physicians to advise us on scientific and medical
matters including medicinal and computational chemistry, biochemistry,
immunology, enzymology, molecular and cell biology, pharmacology and clinical
trials.

  The following table lists our Scientific and Clinical Advisors:



               Name                              Title/Affiliation
               ----                              -----------------
                                
 Joseph R. Bertino, MD ........... Chairman, Molecular Pharmacology and
                                   Therapeutics Program, Sloan-Kettering
                                   Institute for Cancer Research, Memorial
                                   Sloan-Kettering Cancer Center, New York

 Perry J. Blackshear, MD, PhD..... Clinical Director, Office of Clinical
                                   Research, National Institute of
                                   Environmental Health Sciences, North
                                   Carolina

 Ronald H. Blum, MD............... Director, Cancer Center and Programs, Beth
                                   Israel Medical Center, New York

 Richard F. Borch, MD, PhD........ Eli Lilly Distinguished Professor of
                                   Medicine, Head, Department of Medicinal
                                   Chemistry and Molecular Pharmacology,
                                   Lafayette Center for Medical Education,
                                   Purdue University, Indiana

 Michael J. Buchmeier, PhD........ Professor and Director, Emerging Virus
                                   Research Center, Scripps Research Institute,
                                   California

 Fritz R. Buhler, Prof. Dr. Med... Vice-Chairman, International Biomedicine
                                   Management Partners, Inc., Director,
                                   European Center for Pharmaceutical Medicine,
                                   University of Basel, Switzerland

 M. Sheila Donnelly, MD........... Instructor of Medicine, Harvard Medical
                                   School and Clinical Associate, Dana Farber
                                   Cancer Center, Massachusetts

 Jurgen Drews, Prof. Med. ........ Chairman, International Biomedicine
                                   Partners, Inc., Switzerland

 Peter D. Eisenberg, MD .......... Medical Director, Marin Cancer Institute,
                                   San Rafael, California

 Ira D. Goldfine, MD ............. Professor, University of California at San
                                   Francisco, Director, Division of Diabetes
                                   and Endocrine Research, Mount Zion Medical
                                   Center of the University of California at
                                   San Francisco

 Jordan U. Gutterman, MD ......... Professor and Chairman, Department of
                                   Clinical Immunology and Biological Therapy,
                                   The University of Texas M.D. Anderson Cancer
                                   Center

 W. David Henner, MD PhD.......... Professor of Medicine and Pharmacology,
                                   Oregon Health Sciences University

 Lawrence M. Kauvar, PhD.......... Founder and President, Trellis
                                   Bioinformatics, Inc.

 Bengt Mannervik, PhD............. Professor, Department of Biochemistry,
                                   Uppsala University, Sweden

 Daria Mochly-Rosen, PhD.......... Associate Professor, Department of Molecular
                                   Pharmacology, Stanford University School of
                                   Medicine, California

 John W. Sedat, PhD............... Professor of Biochemistry, Department of
                                   Biochemistry and Biophysics, University of
                                   California at San Francisco

 David Sidransky, MD ............. Professor of Otolaryngology, Oncology,
                                   Pathology and Cellular and Molecular
                                   Medicine, Director, Head and Neck Cancer
                                   Research Division, Johns Hopkins University,
                                   Maryland

 John A. Tainer, PhD.............. Member and Professor, Department of
                                   Molecular Biology, Scripps Research
                                   Institute, California

 Kenneth D. Tew, PhD.............. Chairman of Pharmacology Department, Fox
                                   Chase Cancer Center, Adjunct Professor
                                   Pharmacology, University of Pennsylvania

 Sabina K. Wallach, MD ........... Physician, Scripps Memorial Hospital,
                                   California

 Harel Weinstein, DSc ............ Professor and Chairman, Department of
                                   Physiology and Biophysics, Mount Sinai
                                   School of Medicine, Director, Institute for
                                   Computational Biomedicine, Mount Sinai
                                   School of Medicine


                               Legal Proceedings

  We are currently not a party to any legal proceedings.

                                       39


                                   MANAGEMENT
- --------------------------------------------------------------------------------

Executive Officers, Directors and Key Personnel

  The following table sets forth information regarding our executive officers,
directors and key personnel.



Name                        Age                    Position
- ----                        ---                    --------
                          
Executive Officers and
 Directors
Michael M. Wick, MD, PhD..   54 President, Chief Executive Officer and Chairman
Cynthia M. Butitta........   45 Chief Financial Officer
Reinaldo F. Gomez, PhD....   54 Vice-President, Corporate Alliances
David R. Bethune..........   59 Director
Jean Deleage, PhD.........   59 Director
Jerrold L. Glick..........   57 Director
David W. Martin, Jr., MD..   59 Director
Stefan Ryser, PhD.........   40 Director

Key Personnel
Michael R. Kozlowski,
 PhD......................   46 Vice President, Biology Research
Steven R. Schow, PhD......   50 Vice President, Chemistry Research
Hugo O. Villar, PhD.......   41 Vice President, Discovery Technologies


  Michael M. Wick, MD, PhD has served as our Chairman of the board of directors
since January 2000, as our Chief Executive Officer since July 1999 and as our
President since June 1998. Dr. Wick served as our Chief Operating Officer from
December 1997 until June 1998, and as our Executive Vice President, Research
and Development, from December 1997 until June 1998. He has been one of our
directors since December 1997. Prior to joining us in December 1997, Dr. Wick
was Senior Vice President of Research for CV Therapeutics, a public
biotechnology company, from May 1995 until May 1997 and continued as a
consultant until December 1997. Dr. Wick served as Executive Director of
oncology/immunology and clinical research at Lederle Laboratories, a division
of American Cyanamid, a pharmaceutical company, from September 1990 until May
1995, and also directed the Cynamid/Immunex joint oncology research program.
Dr. Wick began his career at Harvard Medical School, where he served as an
Associate Professor from July 1981 until June 1994 and Chief of the Melanoma
Clinic and Laboratory of Molecular Dermatological Oncology at the Dana Farber
Cancer Institute from September 1980 until September 1992. Dr. Wick holds a PhD
degree in chemistry from Harvard University and an MD degree from Harvard
Medical School.

  Cynthia M. Butitta has served as our Chief Financial Officer since August
1998. Ms. Butitta also provides financial consulting services as a Partner in
Altair Capital Associates LLC, which she co-founded in November 1998, and
Butitta Consulting Services LLC, which she founded in September 1997. From
December 1995 until September 1997, Ms. Butitta was Vice President of Finance
and Administration and Chief Financial Officer for Connetics, Inc., a
biotechnology company. From June 1994 until December 1995, she was Vice
President of Finance and Administration and Chief Financial Officer for InSite
Vision, Inc., a biotechnology company. Ms. Butitta holds a BS degree in
business and accounting from Edgewood College in Madison, Wisconsin, and an MBA
degree in finance from the University of Wisconsin, Madison.

  Reinaldo F. Gomez, PhD has served as our Vice President, Corporate Alliances
since January 1998. He served as our Vice President, Research and Development
from September 1996 until December 1997. From August 1995 to September 1996,
Dr. Gomez served as our Vice President, Project Management. Dr. Gomez served as
our Chief Executive Officer from July 1992 to August 1995. He served as our
President from May 1991 until August 1995 and as one of our directors from

                                       40


May 1991 until January 1997. Over a ten-year period prior to that, Dr. Gomez
held various research positions at Genentech, Inc., a biotechnology company,
including that of Vice President of Discovery Research. During his tenure at
Genentech, Dr. Gomez directed that company's major drug development effort for
tissue plasminogen activator (t-PA), which led to the filing of the application
for FDA marketing approval in 1986. He previously served on the faculty of the
Massachusetts Institute of Technology (MIT) as Associate Professor in Nutrition
and Food Science. Dr. Gomez received his BS and MS degrees in food science from
the University of Florida and his PhD in nutrition and food science from MIT.

  David R. Bethune has served as one of our directors since December 1999. Mr.
Bethune has 34 years of experience in the pharmaceutical and biopharmaceutical
industries. Since February 2000, he has served as Chairman and Chief Executive
Officer of Atrix Laboratories, a pharmaceutical company, and became acting
Chief Executive Officer of Atrix in August 1999. He has also served as a
director of Atrix since April 1995. From July 1997 until October 1998, Mr.
Bethune was President and Chief Operating Officer of IVAX Corporation, a
pharmaceutical company. From March 1995 until June 1997, he served as President
and Chief Executive Officer for Aesgen, Inc., a pharmaceutical company. Mr.
Bethune has held various positions at American Cyanamid Company, a
pharmaceutical company, from February 1988 until February 1995. Mr. Bethune
also served as President of Operations and Vice President and General Manager
of U.S. Pharmaceuticals for G. D. Searle & Co., a pharmaceutical company, from
June 1984 until January 1988. Mr. Bethune is a director of St. Charles
Pharmaceutical Co., a pharmaceutical company, and the Female Health Company, a
company that sells female health products. Mr. Bethune holds an AB degree in
Accounting and Finance from Lenoir-Rhyne College and a masters degree in
Executive Management from Columbia University.

  Jean Deleage, PhD has served as one of our directors since August 1994. Dr.
Deleage is a founder and Managing General Partner of Alta Partners, a venture
capital partnership investing in information technologies and life science
companies. From 1979 to 1996, Dr. Deleage was a Managing Partner of Burr, Egan,
Deleage & Co., a venture capital firm. Dr. Deleage was a founder of Sofinnova,
a venture capital organization in France, and Sofinnova, Inc., a U.S.
subsidiary of Sofinnova. Dr. Deleage is a director of Flamel Technologies S.A.,
a polymer engineering company and Aclara Biosciences, Inc., a biotechnology
company. In 1993, he was awarded the Ordre National du Merite and the Legion of
Honor from the French government. Dr. Deleage received a Baccalaureate in
France, an MS degree in electrical engineering from Ecole Superieure
d'Eletricite and a PhD in economics from the Sorbonne.

  Jerrold L. Glick has served as one of our directors since 1988, as our
Chairman of the board from 1988 until November 1995, and as our Secretary from
December 1988 until November 1990. Mr. Glick has been a General Partner of
Columbia Group Limited, LLP, a real estate development company, since 1972. In
1991, Mr. Glick founded QualiCenters, Inc., a multi-state provider of dialysis
services and served as its secretary and director until 1997. He is a director
of Urban Ventures LLC, a real estate development company; director, Secretary
and Vice President of AML/APL, Inc., a clinical laboratory services company;
director and Secretary of RV Management Corp., a multi-state provider of
dialysis services; and director of Republic Financial Corporation, a financial
services company. Mr. Glick received a BS degree in finance from the University
of Southern California.

  David W. Martin, Jr., MD has served as one of our directors since August
1997. In July 1997, Dr. Martin co-founded Eos Biotechnology, Inc., a
biotechnology company, and has been its President and Chief Executive Officer
since July 1997. From May 1995 until November 1996, he served as President and
Chief Executive Officer of Lynx Therapeutics, a company that develops
technology for measuring gene activities. From January 1994 until April 1995,
Dr. Martin held various positions at Chiron Therapeutics, a biotechnology
company. He was Executive Vice President of Research and

                                       41


Development at The DuPont Merck Pharmaceutical Co., a pharmaceutical company,
from January 1991 until January 1994. From January 1983 until September 1990,
Dr. Martin served as the first Vice President of Research and Development of
Genentech, a biotechnology company. Dr. Martin is a director of Varian Medical
Systems, Inc., a spin-off of Varian Associates, Inc., a company that develops
and markets radiation equipment and software, and Cubist Pharmaceuticals, Inc.,
a company that discovers and develops anti-infective drugs. Dr. Martin holds an
MD degree from Duke University.

  Stefan Ryser, PhD has served as one of our directors since September 1998.
Dr. Ryser has served as Chief Executive Officer, member and delegate of the
board of International Biomedicine Management Partners Inc., a company that
manages investments in biotechnology companies on behalf of International BM
Biomedicine Holdings Inc., since January 1998. From January 1989 until December
1997, Dr. Ryser held various positions at F. Hoffmann-La Roche Ltd. (Roche), a
pharmaceutical company, including Scientific Assistant to the President of
Global Research and Development, and was responsible for maintaining the
scientific liaison between Roche and Genentech. From January 1991 until
December 1997, Dr. Ryser served as a member of the Brussels-based senior
advisory group of EuropaBio, a European biotechnology organization. Dr. Ryser
is a director of Genaissance Pharmaceuticals, Inc., a genomics company; Arena
Pharmaceuticals, a biotechnology company, and Cytokinetics, Inc., a
biotechnology company. Dr. Ryser received a PhD degree in molecular biology
from the University of Basel.

  Michael R. Kozlowski, PhD has served as our Vice President of Biology
Research since March 2000. He served as our Senior Director of Discovery
Biology from June 1998, and as our Director of Pharmacology since March 1998.
Prior to joining us, Dr. Kozlowski served as a Program Director and Director of
Assay Development and Screening at Geron Corporation, a biotechnology company,
from January 1994 until March 1998. Dr. Kozlowski was a Senior
Scientist/Principle Scientist at Bristol-Myers Squibb Co., a pharmaceutical
company, from June 1987 until December 1993. Dr. Kozlowski earned his BS in
biology from The California Institute of Technology in June 1976 and his PhD in
biology in March 1983 from the University of California at Irvine.

  Steven R. Schow, PhD has served as our Vice President of Chemistry Research
since March 2000. He served as our Senior Director of Medicinal Chemistry from
March 1998 until March 2000. Prior to joining us, Dr. Schow served as a
Director of Medicinal Chemistry at CV Therapeutics, a biotechnology company,
from May 1995 to March 1998. He served as a Senior Group Leader at Lederle
Laboratories, a division of American Cyanamid, a pharmaceutical company, from
November 1991 until May 1995. Dr. Schow earned his PhD degree in organic
chemistry in October 1977 from the University of California at Los Angeles.

  Hugo O. Villar, PhD has served as our Vice President, Discovery Technologies
since February 1998. Dr. Villar previously served as our Director of Chemistry
from May 1995 until February 1998, and as a Senior Scientist from October 1992
to May 1995. Prior to joining us, Dr. Villar served as a director of
computational pharmacology at Molecular Research Institute, a not-for-profit
research organization, from July 1989 until October 1992. He was also a
computational chemist at SRI International, a not-for-profit research
organization, from May 1988 until June 1989. Dr. Villar earned an MS degree in
December 1981 and PhD degree in December 1985 in chemistry from the Universidad
Nacional de La Plata, Argentina.

  Our executive officers are appointed by our board of directors and serve
until their successors are elected or appointed. There are no family
relationships among any of our directors or executive officers. No director has
a contractual right to serve as a member of our board of directors.

                                       42


                                Board Committees

  Audit Committee. Our audit committee, consisting of Dr. Martin and Messrs.
Bethune and Glick, reviews our internal accounting procedures and the services
provided by our independent auditors.

  Compensation Committee. Our compensation committee reviews and recommends to
our board of directors the compensation and benefits of all our officers and
establishes and reviews general policies relating to compensation and benefits
of our employees. Our compensation committee currently consists of Drs. Deleage
and Ryser and Mr. Bethune. Mr. Glick served on our compensation committee from
November 1992 until March 2000. Mr. James Gower served on our compensation
committee from November 1992 until December 1999, when he retired from the
board.

                           Compensation of Directors

  We do not provide cash compensation to members of our board of directors for
serving on our board of directors or for attendance at committee meetings.
Members of our board of directors are reimbursed for some expenses in
connection with attendance at board and committee meetings. In consideration
for services as directors, on December 17, 1999, we granted an option to
purchase 5,000 shares of common stock to Mr. Bethune and 2,500 shares of common
stock to each of Drs. Deleage, Martin and Ryser and Mr. Glick at an exercise
price of $1.60 per share. The $1.60 per share exercise price for these options
was equal to the fair market value of the common stock on the date of grant as
determined by our board of directors. Twenty-five percent of these options vest
immediately upon grant and the remaining shares vest in equal installments over
the next forty-eight months.

                             Executive Compensation

  The following table sets forth information concerning the compensation that
we paid during 1999 to our Chief Executive Officer and each of the three other
executive officers during 1999. There were no other executive officers during
this period. All option grants were made under our 1996 Stock Option Plan.

Summary compensation



                                                       Long Term
                                           Annual     Compensation
                                        Compensation   Securities
                                       --------------  Underlying   All Other
   Name and Principal Position          Salary  Bonus   Options    Compensation
   ---------------------------         -------- ----- ------------ ------------
                                                       
Michael M. Wick....................... $270,000  $--    150,000         --
 President, Chief Executive Officer
 and Chairman(1)
Clifford Orent........................  229,450   --         --         --
 Vice-Chairman(2)
Reinaldo F. Gomez.....................  209,467   --         --         --
 Vice-President, Corporate Alliances
Cynthia M. Butitta....................  120,000   --         --         --
 Chief Financial Officer

- -----------------
(1) Dr. Wick was promoted to Chief Executive Officer in July 1999 and Chairman
    in January 2000.
(2) Mr. Orent served as Chairman and Chief Executive Officer through June 1999
    and Chairman through December 1999. Mr. Orent retired from Telik in March
    2000.

                                       43


  The following table sets forth summary information regarding the option
grants made to our Chief Executive Officer and each of our three other
executive officers during 1999. Options granted to purchase shares of our
common stock under our 1996 Stock Option Plan generally vest over a four-year
period. Twenty-five percent of the initial option grant vests on the one year
anniversary of employment and the remainder vests in a series of equal monthly
installments beginning on the one year anniversary of employment and continuing
over the next three years of service. Subsequent options granted generally vest
according to the same schedule. The exercise price per share is equal to the
fair market value of our common stock on the date of grant as determined by our
board of directors. The percentage of total options was calculated based on
options to purchase an aggregate of 246,050 shares of common stock granted to
employees under our stock option plan in 1999. The potential realizable value
was calculated based on the ten-year term of the options and assumed rates of
stock appreciation of 5% and 10%, compounded annually from the date the options
were granted to their expiration date based on the fair market value of the
common stock on the date of grant.

Option grants in 1999


                                       Individual grants
                          --------------------------------------------
                                                                          Potential
                                                                         Realizable
                                                                          Value at
                                                                       Assumed Annual
                                                                       Rates of Stock
                          Number of  Percentage of                          Price
                          Securities Total Options                      Appreciation
                          Underlying  Granted to                       for Option Term
                           Options   Employees in  Exercise Expiration ---------------
                           Granted    Fiscal Year   Price      Date    5% ($)  10% ($)
                          ---------- ------------- -------- ---------- ------- -------
                                                             
Michael M. Wick.........   150,000       61.0%      $1.60    07/30/09  150,935 444,748
 President, Chief
 Executive Officer and
 Chairman
Clifford Orent..........        --         --          --          --       --      --
 Vice-Chairman(1)
Reinaldo F. Gomez.......        --         --          --          --       --      --
 Vice-President,
 Corporate Alliances
Cynthia M. Butitta......        --         --          --          --       --      --
 Chief Financial Officer

- -----------------
(1) Mr. Orent served as Chairman and Chief Executive Officer through June 1999
    and Chairman through December 1999. Mr. Orent retired from Telik in March
    2000.

                                       44


  The following table sets forth summary information regarding the number and
value of options held as of December 31, 1999 by our Chief Executive Officer
and each of our three executive officers. These executive officers did not
exercise any options in 1999. Amounts shown in the value of unexercised in-the-
money options at December 31, 1999 column are based on an initial public
offering price of $    per share without taking into account any taxes that may
be payable in connection with the transaction, multiplied by the number of
shares underlying the option, less the aggregate exercise price payable for
these shares.

1999 Option Values


                                                                   Value of
                                                                  Unexercised
                                               Number of         In-The-Money
                                         Securities Underlying    Options at
                                         Unexercised Options at  December 31,
                                           December 31, 1999         1999
                                         ---------------------- ---------------
                  Name                     Vested    Unvested   Vested Unvested
                  ----                   ---------- ----------- ------ --------
                                                           
Michael M. Wick ........................    220,875    478,125
 President, Chief Executive Officer and
 Chairman
Clifford Orent..........................    403,803    202,447
 Vice-Chairman(1)
Reinaldo F. Gomez ......................    142,396     88,021
 Vice President, Corporate Alliances
Cynthia M. Butitta......................     96,000         --
 Chief Financial Officer

- -----------------
(1) Mr. Orent served as Chairman and Chief Executive Officer through June 1999
    and Chairman through December 1999. Mr. Orent retired from Telik in March
    2000.

                                 Benefit Plans

2000 Equity Incentive Plan

  We adopted our 2000 Equity Incentive Plan in March 2000 to replace our 1988
Stock Option Plan and our 1996 Stock Option Plan.

  Share Reserve. We have reserved a total of 2,000,000 shares of our common
stock for issuance under the incentive plan. On each January 1, starting with
January 1, 2001 continuing through and including January 1, 2010, the share
reserve automatically will be increased by a number of shares equal to the
least of:

  . 5% of our then outstanding shares of common stock;

  . 1,500,000 shares; or

  . a number determined by our board.

  If the recipient of a stock award does not purchase the shares subject to
such stock award before the stock award expires or otherwise terminates, the
shares that are not purchased will again become available for issuance under
the incentive plan.

  Administration. The board administers the incentive plan unless it delegates
administration to a committee. The board has the authority to construe,
interpret and amend the incentive plan as well as to determine:

  . who will receive awards under the incentive plan;

                                       45


  . the dates on which such awards will be granted;

  . the number of shares subject to the awards;

  . the vesting and exercisability of the awards;

  . the exercise price of the awards;

  . the type of consideration that may be used to satisfy the exercise price;
    and

  . the other terms of the awards.

  Eligibility. The board may grant incentive stock options that qualify under
Section 422 of the Internal Revenue Code to our employees and to the employees
of our affiliates. The board also may grant nonstatutory stock options, stock
bonuses and restricted stock purchase awards to our employees, directors and
consultants as well as to the employees, directors and consultants of our
affiliates.

  Limits on Option Grants. There are limits on the number of shares that the
board may grant under an option. No employee may receive incentive stock
options that exceed the $100,000 per year limitation set forth in Section
422(d) of the Internal Revenue Code. For this purpose, the value of incentive
stock options is determined based upon the fair market value of the common
stock underlying such options on the date of grant.

  Option Terms. The board may grant incentive stock options with an exercise
price of 100% or more of the fair market value of a share of our common stock
on the grant date. The board may grant nonstatutory stock options with an
exercise price as low as 85% of the fair market value of a share on the grant
date. Options may have a term of up to 10 years. Options may, but need not,
vest in installments according to a schedule established on the grant date. The
board, however, may accelerate the vesting of such options.

  Terms of Other Stock Awards. The board determines the purchase price of other
stock awards, which may not be less than 85% of the fair market value of our
common stock on the grant date. However, the board may award stock bonuses in
consideration of past services without a cash purchase price. Shares that we
sell or award under the incentive plan may, but need not be, restricted and
subject to a repurchase option in our favor in accordance with a vesting
schedule that the board determines. The board, however, may accelerate the
vesting of such awards.

  Stock Awards Granted. No stock options or other awards have been issued under
the incentive plan.

  Plan Termination. The incentive plan will terminate in March 2010 unless the
board terminates it prior to that time.

1988 Stock Option Plan and 1996 Stock Option Plan

  Our 1988 and 1996 Stock Option Plans will terminate as of the effective date
of this offering, though the termination will have no effect on the options
that are outstanding under these plans. No new stock options will be granted
under these plans after the completion of this offering. Generally, the
exercise price of the options granted under these plans is equal to the fair
market value on the date of grant as determined by the board.

  As of March 23, 2000, we have granted incentive stock options and
nonstatutory stock options to purchase an aggregate of 4,648,182 shares under
the 1988 and 1996 Stock Option Plans and outside the plans; issued an aggregate
of 281,842 shares upon the exercise of options; and options to purchase
3,096,518 shares at a weighted average exercise price of $1.40 were
outstanding.

                                       46


2000 Non-Employee Directors' Stock Option Plan

  We adopted the 2000 Non-Employee Directors' Stock Option Plan in March 2000.
The Directors' Plan will become effective on the effective date of this
offering. The Directors' Plan provides for the automatic grant to our non-
employee directors of options to purchase shares of our common stock.

  Share Reserve. We have reserved a total of 300,000 shares of our common stock
for issuance under the Directors' Plan. If an optionholder does not purchase
the shares subject to such option before the option expires or otherwise
terminates, the shares that are not purchased again become available for
issuance under the Directors' Plan.

  Administration. The board administers the Directors' Plan unless it delegates
administration to a committee. The board has the authority to construe,
interpret and amend the Directors' Plan, but the Directors' Plan specifies the
essential terms of the options, including:

  . who will receive options under the directors' plan;

  . the dates on which such options will be granted;

  . the number of shares subject to the options;

  . the vesting schedule applicable to the options;

  . the exercise price of the options; and

  . the type of consideration that may be used to satisfy the exercise price.

  Eligibility. Each non-employee director who is serving on the effective date
of this offering will automatically be granted an option to purchase 20,000
shares of common stock. Each person who is elected or appointed to be a non-
employee director for the first time after the effective date of this offering
will be granted an option to purchase 20,000 shares of common stock upon such
election or appointment. In addition, each non-employee director who continues
to serve as a non-employee director automatically will be granted an option to
purchase 5,000 shares of common stock on the day following each annual meeting
of our stockholders. The number of shares subject to the grants to be made
following each annual meeting will be pro-rated for any non-employee director
who has not continuously served as a director for the entire 12-month period
prior to the date of grant. Twenty-five percent of the shares subject to the
options will vest on the first anniversary of the grant date and the remainder
of shares will vest in equal monthly installments over the next three years.
The vesting of each option will cease on the date the non-employee director
holding such option ceases to provide services (whether as a director, employee
or consultant) to us or one of our affiliates.

Option Terms. Options granted under the Directors' Plan will have an exercise
price equal to 100% of the fair market value of the common stock on the grant
date and a term of 10 years. As long as a non-employee director continues to
serve with us or with one of our affiliates, whether in the capacity of a
director, an employee or a consultant, the non-employee director's option will
continue. Options will terminate three months after the non-employee director's
service with the company and its affiliates terminates. However, if such
termination is due to the non-employee director's disability, the exercise
period will be extended to 12 months. If such termination is due to the non-
employee director's death or if the non-employee director dies within three
months after his or her service terminates, the exercise period will be
extended to 18 months following death.

  Options Issued. Each of our directors will receive an option to purchase
20,000 shares of common stock at the initial public offering price.

  Plan Termination. The Directors' Plan will terminate in March 2010 unless the
board terminates it prior to that time.

                                       47


2000 Employee Stock Purchase Plan

  We adopted the 2000 Employee Stock Purchase Plan in March 2000.

  Share Reserve. We have authorized the issuance of 250,000 shares of our
common stock pursuant to purchase rights granted to eligible employees under
the Purchase Plan. On each January 1, starting with January 1, 2001 and
continuing through January 1, 2010, the share reserve will automatically be
increased by a number of shares equal to the lesser of:

  . 1% of our then outstanding shares of common stock;

  . 150,000 shares; or

  . a number determined by our board of directors.

  Eligibility. The Purchase Plan is intended to qualify as an employee stock
purchase plan within the meaning of Section 423 of the Internal Revenue Code.
The Purchase Plan provides a means by which eligible employees may purchase our
common stock through payroll deductions. We implement the Purchase Plan by
offerings of purchase rights to eligible employees. Generally, all of our full-
time employees and full-time employees of our affiliates incorporated in the
United States may participate in offerings under the Purchase Plan.

  Administration. Under the Purchase Plan, the board may specify offerings of
up to 27 months. Unless the board otherwise determines, common stock will be
purchased for accounts of participating employees at a price per share equal to
the lower of:

  . 85% of the fair market value of a share on the first day of the offering;
    or

  . 85% of the fair market value of a share on the purchase date.

  The first offering under this plan will begin on the effective date of this
offering. The fair market value of the shares on the first date of the first
offering under this plan will be the initial public offering price.

  The board may provide that employees who become eligible to participate after
the offering period begins nevertheless may enroll in the offering. These
employees will purchase our stock at the lower of:

  . 85% of the fair market value of a share on the day they began
    participating in the purchase plan; or

  . 85% of the fair market value of a share on the purchase date.

  If authorized by the board, participating employees may authorize payroll
deductions of up to 15% of their base compensation for the purchase of stock
under the Purchase Plan.

  Other Provisions. The board may grant eligible employees purchase rights
under the Purchase Plan only if the purchase rights, together with any other
purchase rights granted under other employee stock purchase plans established
by us or by our affiliates, if any, do not permit the employee's rights to
purchase our stock to accrue at a rate which exceeds $25,000 of fair market
value of our stock for each calendar year in which the purchase rights are
outstanding.

Description of 401(k) Plan

  We maintain a retirement and deferred savings plan for our employees. The
retirement and deferred savings plan is intended to qualify as a tax-qualified
plan under Section 401 of the Internal Revenue Code. The retirement and
deferred savings plan provides that each participant may contribute up to 20%
of his or her pre-tax compensation (up to a statutory limit, which is $10,500
in

                                       48


calendar year 2000). Under the plan, each employee is fully vested in his or
her deferred salary contributions. Employee contributions are held and invested
by the plan's trustee. The retirement and deferred savings plan also permits us
to make discretionary contributions, subject to established limits and a
vesting schedule. To date, we have not made any discretionary contributions to
the retirement and deferred savings plan on behalf of participating employees.

         Employment Agreements and Termination of Employment Agreements

  We entered into an employment agreement with Michael M. Wick in August 1999
upon his promotion to the position of Chief Executive Officer. In December
1999, Dr. Wick was elected Chairman of the board which became effective in
January 2000. Either Telik or Dr. Wick may terminate his employment at any time
for any reason. In the event that Dr. Wick is terminated without cause, he is
entitled to receive as severance, continued payment of his base salary and
health care benefits for twelve months. The monthly vesting of stock options
will also continue for the same twelve months.

  We entered into an employment agreement with Reinaldo F. Gomez in September
1999. His agreement with us terminates on August 31, 2000, unless extended by
mutual agreement. In the event that Dr. Gomez is terminated without cause any
time before August 31, 2000, he will be entitled to severance equal to the
amount of his base salary and continue to receive health care benefits up to a
three-month period. Either Telik or Dr. Gomez may terminate his employment at
any time for any reason.

  In July 1998, we entered into an employment agreement with Cynthia M.
Butitta, our Chief Financial Officer. Ms. Butitta serves us in a part-time
capacity. Ms. Butitta is paid an annual base salary of $120,000 and was granted
an option to purchase 96,000 shares of our common stock at an exercise price of
$1.60 per share. As of November 1999, all such options were fully vested.
Either Telik or Ms. Butitta may terminate her employment at any time. There are
no severance provisions.

                                       49


                           RELATED PARTY TRANSACTIONS
- --------------------------------------------------------------------------------

Sale of Securities

  Since January 1997 through March 31, 2000, we have issued and sold the
following securities in private placement transactions:

  . 107,498 shares of Series I preferred stock for an aggregate price of
    $5,374,900 in September 1997;

  . 210,000 shares of Series J preferred stock for an aggregate price of
    $10,500,000 in September 1998 and October 1998; and

  . 1,166,667 shares of Series K preferred stock for an aggregate price of
    $7,000,000 in March 2000.

  The following table sets forth the shares of common stock issuable upon
conversion of preferred stock purchased by the holders of more than 5% of our
outstanding stock and their affiliates. No executive officer or director
purchased any shares, except Drs. Deleage and Ryser, who are affiliated with
Alta V Management Partners, L.P. and International BM Biomedicine Holdings AG,
respectively.



                                       Shares of common stock
                                    issuable upon conversion of:
                                    -----------------------------
                                    Series I  Series J  Series K
Executive officers, directors and   Preferred Preferred Preferred     Total
5% Stockholders                       Stock     Stock     Stock   Consideration
- ---------------------------------   --------- --------- --------- -------------
                                                      
Sanwa Kagaku Kenkyusho Co., Ltd...   714,285  1,190,476            $8,000,000
Entities Affiliated with Alta V
 Management Partners, L.P.........   149,999             833,333   $5,630,000
Entities Affiliated with Alpha
 Venture Partners III.............    23,809                       $  100,000
Entities Affiliated with Delphi
 Management Partners II, L.P......   107,142                       $  450,000
Entities Affiliated with Weiss,
 Peck & Greer Venture Partners II,
 L.P..............................   135,714                       $  570,000
Entities Affiliated with Oxford
 Bioscience Management Corp.......   114,285                       $  480,000
Entities Affiliated with Advent
 International Corporation........   164,285                       $  690,000
International BM Biomedicine
 Holdings AG......................            1,309,523  166,667   $6,500,000


  We have entered into an amended and restated registration rights agreement
with each of the purchasers of preferred stock set forth above, pursuant to
which these and other stockholders will have registration rights with respect
to their shares of common stock issuable upon conversion of their preferred
stock following this offering.

  For a description of our collaboration agreements with Sanwa please refer to
"Business--Collaborative relationships" section. In addition to the purchases
of preferred stock noted in the above table, in December 1996, Sanwa purchased
60,000 shares of Series H preferred stock at the purchase price of $50 per
share, convertible into 540,540 shares of common stock.

  Since October 1998, Dr. Gail L. Brown has served as a consultant to us on
matters involving the clinical development of our products. Dr. Brown is the
spouse of Dr. Wick, our President, Chief Executive Officer and Chairman. From
January 1, 1999 through December 31, 1999, we have paid Dr. Brown an aggregate
of $107,875 for professional services to Telik and reimbursed her $10,309 for
expenses.

  We have entered into indemnification agreements with our directors and
certain officers for the indemnification and advancement of expenses to these
persons to the fullest extent permitted by law. We also intend to enter into
those agreements with our future directors and officers.

                                       50


                             PRINCIPAL STOCKHOLDERS
- --------------------------------------------------------------------------------

The following table sets forth information with respect to the beneficial
ownership of our common stock as of December 31, 1999 by:

  . each person or group of affiliated persons who is known by us to own
    beneficially 5% or more of our common stock;

  . each of our directors and executive officers; and

  . all of our directors and executive officers as a group.

  Unless otherwise indicated, the persons listed below have sole voting and
investment power with respect to shares of our common stock shown as
beneficially owned by them, subject to community property laws where
applicable. Percentage of beneficial ownership prior to the offering is based
on 16,048,542 shares of common stock outstanding as of December 31, 1999, after
giving effect to issuances, exercises and conversions referred to in the first
paragraph following the table on "The offering". In accordance with the rules
of the SEC, the amounts assume the exercise or conversion of all options that
are exercisable within 60 days after December 31, 1999. The percentages of
beneficial ownership assume no exercise of the underwriters' over-allotment
option. Except as otherwise noted, the address of each person listed is c/o
Telik, Inc., 750 Gateway Boulevard, South San Francisco, CA 94080.



                                                             Percent
                                                          Beneficially
                                            Number of         Owned
                                              Shares    -----------------
                                           Beneficially  Before   After
Name and Address of Beneficial Owner          Owned     Offering Offering
- ------------------------------------       ------------ -------- --------
                                                        
Five percent stockholders
Sanwa Kagaku Kenkyusho Co., Ltd. .........  2,445,301     15.2%
 International Division
 35 Higashi-ku
 Nagoya 461
 Japan

International BM Biomedicine Holdings       1,476,190      9.2
 AG(1) ...................................
 Bank Julius Baer & Co., Ltd.
 c/o Brown Brothers Harriman & Co.
 59 Wall Street
 New York, NY 10005

Alta V Management Partners, L.P.(2) ......  2,027,773     12.6
 One Embarcadero Center
 Suite 170
 San Francisco, CA 94111

Advent International Corporation(3).......  1,199,555      7.5
 101 Federal Street
 Boston, MA 20110

Weiss, Peck & Greer Venture Partners II,    1,089,020      6.8
 L.P.(4)..................................
 555 California Street
 San Francisco, CA 94104

Delphi Management Partners II, L.P.(5) ...    874,996      5.4
 3000 Sand Hill Road
 Building 1, Suite 135
 Menlo Park, CA 94025




                                       51




                                                      Percent Beneficially
                                          Number of           Owned
                                            Shares    ------------------------
                                         Beneficially   Before        After
Name and Address of Beneficial Owner        Owned      Offering      Offering
- ------------------------------------     ------------ ----------    ----------
                                                           
Oxford Bioscience Management Corp.(6)..     867,814            5.4%
 650 Town Center Drive
 Suite 810
 Costa Mesa, CA 92626

Alpha Venture Partners III.............     769,840            4.8
 545 Middlefield Road
 Suite 170
 Menlo Park, CA 94025

Directors and executive officers
Michael M. Wick(7).....................     244,792            1.5
Stefan Ryser (1).......................   1,476,190            9.2
Jean Deleage (2).......................   2,038,462           12.7
Jerrold L. Glick (8)...................     129,027              *
David W. Martin, Jr.(9)................       7,474              *
David Bethune (9)......................       1,406              *
Reinaldo Gomez (10)....................     263,592            1.6
Cynthia M. Butitta (9).................      96,000              *
All directors and officers as a group
 (11) (8 persons)......................   4,256,943           25.7

- -----------------
  *  Represents beneficial ownership of less than 1%.
 (1) Stefan Ryser, PhD, a Telik director, possesses voting and investment power
     with respect to the shares shown as beneficially owned by International BM
     Biomedicine Holdings. Shares shown as beneficially owned by Dr. Ryser
     include these shares. Dr. Ryser disclaims beneficial ownership of these
     shares.
 (2) Shares shown as beneficially owned by Alta V Management Partners are held
     by entities of which it is the general partner and are also included in
     the shares shown as beneficially owned by Jean Deleage, a Telik director
     and a general partner of Alta V Management Partners. Dr. Deleage disclaims
     beneficial ownership of these shares, except for the portion of these
     shares attributable to his partnership interest. Shares shown as
     beneficially owned by Dr. Deleage also include 10,689 shares issuable to
     him upon exercise of options exercisable within 60 days of December 31,
     1999.
 (3) Held by entities managed by Advent International. Includes 7,500 shares
     issuable upon exercise of options exercisable within 60 days of December
     31, 1999.
 (4) Held by entities of which Weiss, Peck and Greer Ventures Partners is the
     general partner or adviser. Includes 20,772 shares issuable upon exercise
     of options exercisable within 60 days of December 31, 1999.
 (5) Held by entities of which Delphi Management Partners is the general
     partner.
 (6) Held by Oxford Bioscience Management or entities of which it is the
     general partner. Includes 5,000 shares issuable to it upon exercise of
     options exercisable within 60 days of December 31, 1999.
 (7) Includes 244,792 shares issuable to Dr. Wick pursuant to options
     exercisable within 60 days of December 31, 1999.
 (8) Held by Mr. Glick, who is a Telik director, entities which he may be
     deemed to control and members of his family. Includes 17,591 shares
     issuable to Mr. Glick upon exercise of options exercisable within 60 days
     of December 31, 1999.
 (9) Represents shares issuable upon exercise of options exercisable within 60
     days of December 31, 1999.
(10) Held by Dr. Gomez, who is Vice President, Corporate Alliances of Telik, by
     him and his spouse as trustees of a family trust and his minor child who
     resides with him. Includes 151,510 shares issuable to Dr. Gomez upon
     exercise of options exercisable within 60 days of December 31, 1999.
(11) Includes 517,773 shares issuable pursuant to options exercisable within 60
     days of December 31, 1999.

                                       52


                          DESCRIPTION OF CAPITAL STOCK
- --------------------------------------------------------------------------------

  Upon the closing of this offering and the filing of our amended and restated
certificate of incorporation, our authorized capital stock will consist of
100,000,000 shares of common stock, $0.01 par value, and 5,000,000 shares of
preferred stock, $0.01 par value.

Common Stock

  As of March 31, 2000, there were 16,013,983 shares of common stock
outstanding that were held of record by approximately 190 stockholders, after
giving effect to the conversion of our then outstanding preferred stock into
common stock which will occur at the closing of this offering. There will be
   shares of common stock outstanding after this offering. This amount excludes
shares issuable upon exercise of the options described in the second paragraph
after the table under "The offering."

  The holders of common stock are entitled to one vote per share on all matters
submitted to a vote of our stockholders and do not have cumulative voting
rights. Accordingly, holders of a majority of the shares of common stock
entitled to vote in any election of directors may elect all of the directors
standing for election. Subject to preferences that may be applicable to any
preferred stock outstanding at the time, the holders of outstanding shares of
common stock are entitled to receive ratably any dividends out of assets
legally available as our board of directors may from time to time determine.
Upon liquidation, dissolution or winding up of Telik, holders of our common
stock are entitled to share ratably in all assets remaining after payment of
liabilities and the liquidation preference of any then outstanding shares of
preferred stock. Holders of common stock have no preemptive or conversion
rights or other subscription rights. There are no redemption or sinking fund
provisions applicable to the common stock. All outstanding shares of common
stock are fully paid and nonassessable.

Preferred Stock

  Pursuant to our amended and restated certificate of incorporation, our board
of directors will have the authority, without further action by the
stockholders, to issue up to 5,000,000 shares of preferred stock, in one or
more series. Our board shall determine the rights, preferences, privileges and
restrictions of the preferred stock, including dividend rights, conversion
rights, voting rights, terms of redemption, liquidation preferences, sinking
fund terms and the number of shares constituting any series or the designation
of any series. The issuance of preferred stock could adversely affect the
voting power of holders of common stock, and the likelihood that holders of
preferred stock will receive dividend payments and payments upon liquidation
may have the effect of delaying, deferring or preventing a change in control of
Telik, which could depress the market price of our common stock. We have no
present plan to issue any shares of preferred stock.

Warrants

  We have outstanding warrants for the purchase of preferred stock which is
convertible into an aggregate of 34,559 shares of common stock at an effective
weighted average purchase price of $5.28 per share of common stock. These
warrants will expire, unless exercised, prior to the closing of this offering.

Registration Rights of Stockholders

  Under the terms of an agreement with some of our stockholders, after the
closing of this offering the holders of 13,305,117 shares of common stock will
be entitled to demand that we

                                       53


register their shares under the Securities Act. At any time beginning six
months after the closing of this offering, and on no more than two occasions,
the holders of at least 50% of these shares can demand that we file a
registration statement covering their shares. Also, if we propose to register
any shares of common stock, these stockholders are entitled to include their
shares in the registration. At any time after we become eligible to file a
registration statement on Form S-3, the holders of these shares can demand that
we file a registration statement on Form S-3 covering their shares. The
agreement contains some limitations, including the right of the underwriters of
an offering to limit the number of shares of these stockholders to be included
in the registration.

Anti-Takeover Provisions of Delaware Law and Our Charter

  We are subject to Section 203 of the Delaware General Corporation Law. In
general, the statute prohibits a publicly held Delaware corporation from
engaging in any business combination with any interested stockholder for a
period of three years following the date that the stockholder became an
interested stockholder unless:

  . prior to the date, our board of directors approved either the business
    combination or the transaction that resulted in the stockholder becoming
    an interested stockholder;

  . upon consummation of the transaction that resulted in the stockholder's
    becoming an interested stockholder, the interested stockholder owned at
    least 85% of the voting stock of the corporation outstanding at the time
    the transaction commenced, excluding those shares owned by persons who
    are directors and also officers, and by employee stock plans in which
    shares held subject to the plan will be tendered in a tender or exchange
    offer; or

  . on or subsequent to this date, the business combination is approved by
    our board of directors and authorized at an annual or special meeting of
    stockholders, and not by written consent, by the affirmative vote of at
    least two-thirds of the outstanding voting stock that is not owned by the
    interested stockholder.

  In general, Section 203 defines an interested stockholder as any entity or
person beneficially owning 15% or more of the outstanding voting stock of the
corporation and any entity or person affiliated with or controlling or
controlled by the entity or person.

  Our amended and restated certificate of incorporation requires that upon
completion of the offering, any action required or permitted to be taken by our
stockholders must be effected at a duly called annual or special meeting of
stockholders and may not be effected by a consent in writing. Additionally, our
certificate of incorporation:

  . substantially limits the use of cumulative voting in the election of
    directors;

  . provides that the authorized number of directors may be changed only by
    resolution of our board of directors; and

  . authorizes our board of directors to issue blank check preferred stock to
    increase the amount of outstanding shares.

  Our amended and restated bylaws provide that candidates for director may be
nominated only by our board of directors or by a stockholder who gives written
notice to us no later than 60 days prior nor earlier than 90 days prior to the
first anniversary of the last annual meeting of stockholders. The authorized
number of directors is fixed in accordance with our certificate of
incorporation. Our board of directors currently consists of six members who
will be elected at each annual meeting of our stockholders. Our board of
directors may appoint new directors to fill vacancies or newly created
directorships. Our bylaws also limit who may call a special meeting of
stockholders.

                                       54


  Delaware law and these charter provisions may have the effect of deterring
hostile takeovers or delaying changes in control of our management, which could
depress the market price of our common stock.

Transfer Agent and Registrar

  The transfer agent and registrar for the common stock is Norwest Bank
Minnesota, N.A.

                                       55


                        SHARES ELIGIBLE FOR FUTURE SALE
- --------------------------------------------------------------------------------

  Prior to this offering, there has been no public market for our common stock.
Future sales of substantial amounts of our common stock in the public market
could adversely affect prevailing market prices. Furthermore, since no shares
will be available for sale shortly after this offering because of contractual
and legal restrictions on resale as described below, sales of substantial
amounts of our common stock in the public market after these restrictions lapse
could adversely affect the prevailing market price and our ability to raise
equity capital in the future.

  Upon completion of this offering, we will have outstanding an aggregate of
    shares of common stock. The     shares sold in this offering will be freely
tradable, unless these shares are purchased by affiliates. Substantially all of
the remaining shares are subject to a lock up agreement prohibiting their sale,
without the consent of Warburg Dillon Read LLC, until 180 days after completion
of this offering. After the lock up expires all of these shares will be freely
tradable except for 9,937,206 shares owned by affiliates and 1,166,667 shares
that will be restricted and not eligible for sale until March 31, 2001. The
shares owned by affiliates, and after March 31, 2001 the remaining restricted
shares, may be sold subject to volume limitations and other restrictions
contained in Rule 144. Under Rule 144 an affiliate or a holder of restricted
shares is entitled to sell within any three-month period a number of shares
that does not exceed the greater of:

  . 1% of the number of shares of our common stock then outstanding, which
    will equal approximately     shares immediately after this offering; or

  . the average weekly trading volume of our common stock on the Nasdaq
    National Market during the four calendar weeks preceding the filing of a
    notice on Form 144 with respect to the sale.

Stock Options

  Under Rule 701 of the Securities Act as currently in effect, any of our
employees, consultants or advisors, other than affiliates, who purchases or
receives shares from us in connection with a compensatory stock purchase plan
or option plan or other written agreement will be eligible to resell their
shares beginning 90 days after the date of this prospectus, subject only to the
manner of sale provisions of Rule 144, and by affiliates under Rule 144 without
compliance with its holding period requirements. Following this offering, we
intend to file a registration statement on Form S-8 under the Securities Act
covering 5,646,518 shares of common stock subject to outstanding options and
reserved for issuance under our 2000 Equity Incentive Plan, 2000 Employee Stock
Purchase Plan and 2000 Non-Employee Directors' Stock Option Plan that will
become effective upon filing. Accordingly, shares registered under that
registration statement will, subject to Rule 144 volume limitations applicable
to affiliates, be available for sale in the open market after the filing,
except those shares subject to the lock up agreements.

                                       56


                                  UNDERWRITING
- --------------------------------------------------------------------------------

  Telik and the underwriters for the offering have entered into an underwriting
agreement concerning the shares being offered. Subject to conditions, each
underwriter has severally agreed to purchase the number of shares indicated in
the following table. Warburg Dillon Read LLC, Chase Securities Inc. and Legg
Mason Wood Walker, Incorporated are the representatives of the underwriters.



                                                                             Number
                                                                               of
             Underwriters                                                    Shares
             ------------                                                    ------
                                                                          
   Warburg Dillon Read LLC..................................................
   Chase Securities Inc.....................................................
   Legg Mason Wood Walker, Incorporated.....................................
                                                                              ----
     Total..................................................................
                                                                              ====


  If the underwriters sell more shares than the total number set forth in the
table above, the underwriters have a 30-day option to buy from us up to an
additional        shares at the initial public offering price less the
underwriting discounts and commissions to cover these sales. If any shares are
purchased under this option, the underwriters will severally purchase shares in
approximately the same proportion as set forth in the table above.

  The following table shows the per share and total underwriting discounts and
commissions we will pay to the underwriters. These amounts are shown assuming
both no exercise and full exercise of the underwriters' option to purchase up
to an additional     shares.



                                                       No exercise Full exercise
                                                       ----------- -------------
                                                             
Per share.............................................     $              $
  Total...............................................     $              $


  We estimate that the total expenses of the offering payable by us, excluding
underwriting discounts and commissions, will be approximately $   .

  Shares sold by the underwriters to the public will initially be offered at
the initial public offering price set forth on the cover of this prospectus.
Any shares sold by the underwriters to securities dealers may be sold at a
discount of up to $    per share from the initial public offering price. Any of
these securities dealers may resell any shares purchased from the underwriters
to other brokers or dealers at a discount of up to $    per share from the
initial public offering price. If all the shares are not sold at the initial
public offering price, the representative may change the offering price and the
other selling terms.

The underwriters have informed us that they do not expect discretionary sales
to exceed  % of the shares of common stock to be offered.

  The underwriters have reserved for sale, at the initial public offering
price, up to     shares of our common stock being offered for sale to our
customers and business partners. At the discretion of our management, other
parties, including our employees, may participate in the reserved share
program. The number of shares available for sale to the general public in the
offering will be reduced to the extent these persons purchase reserved shares.
Any reserved shares not so purchased will be offered by the underwriters to the
general public on the same terms as the other shares.

                                       57


  Telik, its directors, officers, stockholders and optionholders have agreed
with the underwriters not to offer, sell, contract to sell, hedge or otherwise
dispose of, directly or indirectly, or file with the SEC, a registration
statement under the Securities Act relating to any of its common stock or
securities convertible into or exchangeable for shares of common stock during
the period from the date of this prospectus continuing through the date 180
days after the date of this prospectus, without the prior written consent of
Warburg Dillon Read LLC.

  Prior to this offering, there has been no public market for our common stock.
The initial public offering price will be negotiated by us and the
representatives. The principal factors to be considered in determining the
initial public offering price include:

  . the information set forth in this prospectus and otherwise available to
    the representatives;

  . the history and the prospects for the industry in which we compete;

  . the ability of our management;

  . our prospects for future earnings, the present state of our development
    and our current financial position;

  . the general condition of the securities markets at the time of this
    offering; and

  . the recent market prices of, and the demand for, publicly traded common
    stock of generally comparable companies.

  In connection with the offering, the underwriters may purchase and sell
shares of common stock in the open market. These transactions may include short
sales, stabilizing transactions and purchases to cover positions created by
short sales. Short sales involve the sale by the underwriters of a greater
number of shares than they are required to purchase in the offering.
Stabilizing transactions consist of bids or purchases made for the purpose of
preventing or retarding a decline in the market price of the common stock while
the offering is in progress.

  The underwriters also may impose a penalty bid. This occurs when a particular
underwriter repays to the underwriters a portion of the underwriting discount
received by it because the representatives have repurchased shares sold by or
for the account of that underwriter in stabilizing or short covering
transactions.

  These activities by the underwriters may stabilize, maintain or otherwise
affect the market price of the common stock. As a result, the price of the
common stock may be higher than the price that otherwise might exist in the
open market. If these activities are commenced, they may be discontinued by the
underwriters at any time. These transactions may be effected on the Nasdaq
National Market, in the over-the-counter market or otherwise.

  We have agreed to indemnify the several underwriters against some
liabilities, including liabilities under the Securities Act of 1933 and to
contribute to payments that the underwriters may be required to make in respect
thereof.

                             VALIDITY OF THE SHARES
- --------------------------------------------------------------------------------

  The validity of the shares of common stock in this offering will be passed
upon for us by Cooley Godward LLP, San Francisco, California, and for the
underwriters by Sullivan & Cromwell, Washington, D.C.

                                       58


                                    EXPERTS
- --------------------------------------------------------------------------------

  Ernst & Young LLP, independent auditors, have audited our financial
statements at December 31, 1998 and 1999, and for each of the three years in
the period ended December 31, 1999, as set forth in their report. We have
included our financial statements in this prospectus and elsewhere in the
registration statement in reliance on Ernst & Young LLP's report, given on
their authority as experts in accounting and auditing.

                      WHERE YOU CAN FIND MORE INFORMATION
- --------------------------------------------------------------------------------

  We have filed with the Securities and Exchange Commission (the "SEC") a
registration statement on Form S-1 under the Securities Act with respect to the
shares of common stock offered under this prospectus. This prospectus does not
contain all of the information in the registration statement and the exhibits
and schedule to the registration statement. For further information with
respect to us and our common stock, we refer you to the registration statement
and to the exhibits and schedule to registration statement. Statements
contained in this prospectus as to the contents of any contract or any other
document referred to are not necessarily complete, and in each instance, we
refer you to the copy of the contract or other document filed as an exhibit to
the registration statement. Each of these statements is qualified in all
respects by this reference. You may inspect a copy of the registration
statement without charge at the SEC's principal office in Washington, D.C., and
copies of all or any part of the registration statement may be obtained from
the Public Reference Room of the SEC, 450 Fifth Street, N.W., Washington, D.C.
20549, upon payment of fees prescribed by the SEC. The public may obtain
information on the operation of the Public Reference Room by calling the SEC at
1-800-SEC-0330. The SEC maintains an Internet site that contains reports, proxy
and information statements and other information regarding issuers that file
electronically with the SEC. The address of the Internet site is
http://www.sec.gov.

  Upon completion of this offering, we will be subject to the information
reporting requirements of the Securities Exchange Act of 1934, as amended, and
we will file reports, proxy statements and other information with the SEC.

  We intend to furnish our stockholders with annual reports containing
financial statements audited by our independent public accountants and
quarterly reports for the first three fiscal quarters of each fiscal year
containing unaudited interim financial information. Our telephone number is
(650) 244-9303.

                                       59


                         INDEX TO FINANCIAL STATEMENTS



                                                                           Page
                                                                           ----
                                                                        
Report of Ernst & Young LLP, Independent Auditors........................  F-2
Balance Sheets as of December 31, 1998 and 1999..........................  F-3
Statements of Operations for the years ending December 31, 1997, 1998 and
 1999....................................................................  F-4
Statement of Stockholders' Equity for the years ending December 31, 1997,
 1998 and 1999...........................................................  F-5
Statements of Cash Flows for the years ending December 31, 1997, 1998 and
 1999....................................................................  F-6
Notes to Financial Statements............................................  F-7


                                      F-1


               REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

The Board of Directors and Stockholders
Telik, Inc.

  We have audited the accompanying balance sheets of Telik, Inc. as of December
31, 1998 and 1999, and the related statements of operations, stockholders'
equity, and cash flows for each of the three years in the period ended December
31, 1999. These financial statements are the responsibility of the Company's
management. Our responsibility is to express an opinion on these financial
statements based on our audits.

  We conducted our audits in accordance with auditing standards generally
accepted in the United States. Those standards require that we plan and perform
the audit to obtain reasonable assurance about whether the financial statements
are free of material misstatement. An audit includes examining, on a test
basis, evidence supporting the amounts and disclosures in the financial
statements. An audit also includes assessing the accounting principles used and
significant estimates made by management, as well as evaluating the overall
financial statement presentation. We believe that our audits provide a
reasonable basis for our opinion.

  In our opinion, the financial statements referred to above present fairly, in
all material respects, the financial position of Telik, Inc. at December 31,
1998 and 1999, and the results of its operations and its cash flows for each of
the three years in the period ended December 31, 1999, in conformity with
accounting principles generally accepted in the United States.

                                          /s/ ERNST & YOUNG LLP

Palo Alto, California
February 25, 2000

                                      F-2


                                  TELIK, INC.

                                 BALANCE SHEETS



                                                                    Unaudited
                                                                    pro forma
                                                                  stockholders'
                                                December 31,        equity at
                                              ------------------  December 31,
                                                1998      1999        1999
                                              --------  --------  -------------
                                                (In thousands, except share
                                                    and per share data)
                                                         
Assets
Current assets:
 Cash and cash equivalents................... $  2,196  $  1,950
 Short-term investments......................   12,206     5,606
 Prepaid expenses and other current assets...      497       337
                                              --------  --------
  Total current assets.......................   14,899     7,893
Property and equipment, net..................    1,566     1,197
Other assets.................................      121        80
                                              --------  --------
                                              $ 16,586  $  9,170
                                              ========  ========
Liabilities and stockholders' equity
Current liabilities:
 Accounts payable............................ $    548  $    780
 Accrued contracts and other liabilities.....      688       680
 Deferred revenue............................    2,118     2,250
 Current portion of capital lease obligations
  and equipment loans........................      630       247
                                              --------  --------
  Total current liabilities..................    3,984     3,957
Noncurrent portion of capital lease
 obligations and equipment loans.............      272        25
Other long-term liabilities..................      153        58
Commitments
Stockholders' equity:
 Convertible preferred stock, $0.01 par
  value, issuable in series, 1,023,799 shares
  authorized in 1998 and 1999 (none pro
  forma), 1,020,150 shares issued and
  outstanding in 1998 and 1999 (none pro
  forma) (aggregate liquidation preference of
  $50,408 at December 31, 1998 and 1999).....       10        10    $     --
 Common stock; $0.01 par value, 23,000,000
  shares authorized in 1998 and 1999
  (35,674,594 shares pro forma), 2,196,038
  and 2,207,281 shares issued and outstanding
  in 1998 and 1999, respectively (14,881,875
  shares pro forma)..........................       22        22          32
 Additional paid-in capital..................   56,465    56,742      56,924
 Deferred stock compensation.................       --      (260)       (260)
 Accumulated deficit.........................  (44,320)  (51,384)    (51,384)
                                              --------  --------    --------
  Total stockholders' equity.................   12,177     5,130    $  5,312
                                              ========  ========    ========
  Total liabilities and stockholders'
   equity.................................... $ 16,586  $  9,170
                                              ========  ========


                                      F-3


                                  TELIK, INC.

                            STATEMENTS OF OPERATIONS



                                              Years ended December 31,
                                       ----------------------------------------
                                           1997          1998          1999
                                       ------------  ------------  ------------
                                       (in thousands, except per share data)
                                                          
Contract revenue from collaborations
 (including $1,500, $1,750 and $2,000
 from a related party in 1997, 1998
 and 1999, respectively).............  $      1,652  $      3,194  $      4,237
Costs and expenses:
 Research and development............         8,090         7,952         9,547
 General and administrative..........         2,470         2,149         2,152
                                       ------------  ------------  ------------
                                             10,560        10,101        11,699
                                       ------------  ------------  ------------
Loss from operations.................        (8,908)       (6,907)       (7,462)
Interest income, net.................           290           328           398
                                       ------------  ------------  ------------
Net loss.............................  $     (8,618) $     (6,579) $     (7,064)
                                       ============  ============  ============
Net loss per share, basic and
 diluted.............................  $      (3.95) $      (3.00) $      (3.21)
                                       ============  ============  ============
Weighted average shares used in
 computing net loss per share, basic
 and diluted.........................         2,184         2,194         2,204
Pro forma net loss per share, basic
 and diluted (unaudited).............                              $      (0.47)
                                                                   ============
Weighted average shares used in
 computing pro forma net loss per
 share, basic and diluted
 (unaudited).........................                                    14,879


                                      F-4


                                  TELIK, INC.

                       STATEMENT OF STOCKHOLDERS' EQUITY
                (In thousands, except share and per share data)



                             Convertible
                           Preferred Stock    Common Stock   Additional   Deferred                   Total
                           ---------------- ----------------  Paid-In      Stock     Accumulated Stockholders'
                            Shares   Amount  Shares   Amount  Capital   Compensation   Deficit      Equity
                           --------- ------ --------- ------ ---------- ------------ ----------- -------------
                                                                         
 Balance at December 31,
  1996...................    667,150  $ 7   2,173,462  $22    $39,036      $          $(29,123)     $9,942
 Issuance of Series I
  preferred stock in
  September and November
  1997 at $50 per share,
  net of issuance costs..    143,000    1          --   --      7,092                       --       7,093
 Exercise of options to
  purchase common stock..         --   --      19,026   --         21                       --          21
 Net loss and
  comprehensive loss.....         --   --          --   --         --                   (8,618)     (8,618)
                           ---------  ---   ---------  ---    -------      -----      --------      ------
 Balance at December 31,
  1997...................    810,150    8   2,192,488   22     46,149                  (37,741)      8,438
 Issuance of Series J
  preferred stock in
  September and October
  1998 at $50 per share,
  net of issuance costs..    210,000    2          --   --     10,286                       --      10,288
 Exercise of options to
  purchase common stock..         --   --       3,550   --         30                       --          30
 Net loss and
  comprehensive loss.....         --   --          --   --         --                   (6,579)     (6,579)
                           ---------  ---   ---------  ---    -------      -----      --------      ------
 Balance at December 31,
  1998...................  1,020,150   10   2,196,038   22     56,465                  (44,320)     12,177
 Exercise of options to
  purchase common stock..         --   --      11,243   --         17                       --          17
 Deferred stock
  compensation...........                                         260       (260)
 Net loss and
  comprehensive loss.....         --   --          --   --         --                   (7,064)     (7,064)
                           ---------  ---   ---------  ---    -------      -----      --------      ------
 Balance at December 31,
  1999...................  1,020,150  $10   2,207,281  $22    $56,742      $(260)     $(51,384)     $5,130
                           =========  ===   =========  ===    =======      =====      ========      ======


                                      F-5


                                  TELIK, INC.

                            STATEMENTS OF CASH FLOWS
                                 (in thousands)



                                                  Years Ended December 31,
                                                 ----------------------------
                                                   1997      1998      1999
                                                 --------  --------  --------
                                                            
Operating activities
Net loss........................................ $ (8,618) $ (6,579) $ (7,064)
Adjustments to reconcile net loss to net cash
 used in operating activities:
 Depreciation and amortization..................    1,175       892       609
 Forgiveness of notes receivable from related
  parties.......................................       43        --        --
 Amortization of discount on investments........     (172)     (272)       99
 Short-term lease deposits......................       --        --       (49)
 Changes in operating assets and liabilities:
  Prepaid expenses and other current assets.....      (77)     (272)      160
  Other assets..................................       51        --        41
  Accounts payable..............................     (197)      435       232
  Accrued contracts and other liabilities.......      450      (285)       (8)
  Deferred revenue..............................      498       120       132
  Other long-term liabilities...................       --       153       (95)
                                                 --------  --------  --------
Net cash used in operating activities...........   (6,847)   (5,808)   (5,943)
                                                 --------  --------  --------
Investing activities
Maturities of short-term investments............    8,500    12,200    11,008
Sales of short-term investments.................    3,360     2,786     5,880
Purchases of short-term investments.............  (18,262)  (17,032)  (10,387)
Purchase of property and equipment..............     (510)     (530)     (240)
Proceeds from disposal of property and
 equipment......................................       --        14        --
                                                 --------  --------  --------
Net cash (used in) provided by investing
 activities.....................................   (6,912)   (2,562)    6,261
                                                 --------  --------  --------
Financing activities
Proceeds from equipment loans...................      210        --        --
Principal payments under capital lease
 obligations and equipment loans................     (626)     (557)     (581)
Net proceeds from issuance of convertible
 preferred stock................................    7,093    10,288        --
Net proceeds from issuance of common stock and
 warrants.......................................       21        30        17
                                                 --------  --------  --------
Net cash provided by (used in) financing
 activities.....................................    6,698     9,761      (564)
                                                 --------  --------  --------
Increase (decrease) in cash and cash
 equivalents....................................   (7,061)    1,391      (246)
Cash and cash equivalents at beginning of
 period.........................................    7,866       805     2,196
                                                 --------  --------  --------
Cash and cash equivalents at end of period...... $    805  $  2,196  $  1,950
                                                 ========  ========  ========
Schedule of non cash transactions
                                                 ========  ========  ========
Cash paid for interest.......................... $    245  $    122  $     58
                                                 ========  ========  ========
Deferred stock compensation..................... $     --  $     --  $    260
                                                 ========  ========  ========


                                      F-6


                                  TELIK, INC.

                         NOTES TO FINANCIAL STATEMENTS

1. Summary of significant accounting policies

  Nature of operations and basis of presentation

  Telik, Inc. (the "Company") was incorporated in the state of Delaware in
October 1988 as Terrapin Diagnostics, Inc. which changed its name in June 1989
to Terrapin Technologies, Inc. ("Terrapin"). In May 1998, Terrapin changed its
name to Telik, Inc. The Company is engaged in the discovery and development of
small molecule drug candidates.

  The Company matured from its development stage to an operating company in
1999. As such, its financial statements are no longer prepared on a
development stage basis. The Company expects continuing losses over the next
several years. The Company plans to obtain its capital requirements through
public or private equity or debt financing, capital lease financing and
collaborative arrangements with corporate partners. If the financing
arrangements contemplated by management are not consummated, the Company may
have to seek other sources of capital or reevaluate its operating plans.

  Use of estimates

  The preparation of financial statements in conformity with accounting
principles generally accepted in the United States requires management to make
estimates and assumptions that affect the amounts reported in the financial
statements and accompanying notes. Actual results may differ from those
estimates.

  Unaudited pro forma information

  If Telik's initial public offering as described in Note 8 is consummated,
all of the preferred stock and warrants outstanding will automatically be
converted into common stock. The unaudited pro forma convertible preferred
stock and stockholders' equity at December 31, 1999 has been adjusted for the
assumed conversion of preferred stock and assumed exercised warrants based on
the shares of preferred stock and warrants outstanding at December 31, 1999.

  Cash equivalents and short-term investments

  The Company considers all highly liquid investments with an original
maturity of 90 days or less when purchased, to be cash equivalents. For the
periods presented, cash equivalents consist of money market funds and
corporate debt securities. The Company's short-term investments include
obligations of governmental agencies and corporate debt securities with
original maturities ranging between 3 and 12 months. The Company limits
concentration of credit risk by diversifying its investments among a variety
of high credit-quality issuers.

  All cash equivalents and short-term investments are classified as available-
for-sale. Available-for-sale securities are carried at estimated fair value,
based on available market information, with unrealized gains and losses, if
any, reported as a component of stockholders' equity. The cost of securities
sold is based on the specific identification method. As of December 31, 1998
and 1999, there were no material differences between amortized cost and fair
value of available-for-sale securities. Realized gains and losses on sales of
available-for-sale investments are not material.

  Fair value of financial instruments

  Financial instruments, including cash and cash equivalents, accounts
payable, accrued liabilities and accrued compensation are carried at cost,
which management believes approximates fair value.

                                      F-7


                                  TELIK, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)


  Property and equipment

  Property and equipment are stated at cost. Depreciation is calculated using
the straight-line method over the estimated useful lives of the assets, which
range from three to seven years. Furniture and equipment leased under capital
leases are amortized using the straight-line method over the estimated useful
lives of the respective assets or the lease term, whichever is shorter.

  Revenue Recognition

  Contract revenue consists of revenue from research and development
collaboration agreements. The Company's research and development collaboration
agreements provide for periodic payments in support of the Company's research
activities. The Company recognizes contract revenue from these agreements as
earned based upon the performance requirements of the agreements and payments
for up-front technology access fees are recognized ratably over the period of
the research program. Payments received, which are related to future
performance, are deferred and recognized as revenue when earned over future
performance periods.

  Stock-based compensation

  As permitted by the Financial Accounting Standards Board Statement No. 123,
"Accounting for Stock-Based Compensation" ("FASB 123"), the Company accounts
for grants of stock options to employees in accordance with Accounting
Principles Board Opinion No. 25, "Accounting for Stock Issued to Employees" and
related interpretations ("APB No. 25"). Accordingly, the Company does not
recognize compensation expense for stock options granted to employees with
exercise prices equal to the fair value of the Company's common stock on the
date of grant. Options granted to consultants are accounted for using the
Black-Scholes method prescribed by FASB 123 and in accordance with Emerging
Issues Task Force Consensus No. 96-18 ("EITF 96-18"), and such options are
subject to periodic revaluation over their vesting term.

  Research and development

  Research and development expenditures, including direct and allocated
expenses, are charged to expense as incurred. Collaboration agreements
generally specify minimum levels of research effort required to be performed by
the Company.

  Segment reporting

  Statement of Financial Accounting Standards No. 131, "Disclosure about
Segments of an Enterprise and Related Information" ("SFAS 131"), establishes
annual and interim reporting standards for an enterprise's operating segments
and related disclosures about its products, services, geographic areas and
major customers. The Company has determined that it operates in only one
segment. Accordingly, the adoption of SFAS 131 had no impact on the Company's
financial statements.

  Comprehensive loss

  Statement of Financial Accounting Standards No. 130, "Reporting Comprehensive
Income" ("SFAS 130"), requires components of other comprehensive income,
including gains and losses on available-for-sale investments, to be included as
part of total comprehensive income. For all periods

                                      F-8


                                  TELIK, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)

presented, the comprehensive loss is equal to the net loss and has been
disclosed in the statement of stockholders' equity.

  Impairment of long-lived assets

  In accordance with the provisions of Statement of Financial Accounting
Standards No. 121, "Accounting for the Impairment of Long-Lived Assets and for
Long-Lived Assets to be Disposed Of" ("SFAS 121"), the Company reviews long-
lived assets, including property and equipment, for impairment whenever events
or changes in business circumstances indicate that the carrying amount of the
assets may not be fully recoverable. Under SFAS 121, an impairment loss would
be recognized when estimated undiscounted future cash flows expected to result
from the use of the asset and its eventual disposition is less than its
carrying amount. Impairment, if any, is assessed using discounted cash flows.
Through December 31, 1999, there have been no such losses.

  Net loss per share

  Net loss per share has been computed according to the Financial Accounting
Standards Board Statement No. 128, "Earnings Per Share," which requires
disclosure of basic and diluted earnings per share. Basic earnings per share
excludes any dilutive effects of options, shares subject to repurchase,
warrants and convertible securities. Diluted earnings per share includes the
impact of potentially dilutive securities. Following the guidance given by the
Securities and Exchange Commission Staff Accounting Bulletin No. 98, common
stock and preferred stock that has been issued or granted for nominal
consideration prior to the anticipated effective date of the initial public
offering must be included in the calculation of basic and diluted net loss per
common share as if these shares had been outstanding for all periods presented.
To date, the Company has not issued or granted shares for nominal
consideration.

  Pro forma net loss per share includes shares issuable upon the conversion of
outstanding shares of preferred stock and warrants (using the as-if-converted
method) from the original date of issuance.

  A reconciliation of shares used in the calculations is as follows (in
thousands):



                                                        Years ended December 31,
                                                        ------------------------
                                                         1997    1998     1999
                                                        ------------------------
                                                               
   Basic and diluted:
    Weighted average shares of common stock
     outstanding......................................    2,184   2,194    2,204
                                                        ======= =======
    Adjustment to reflect weighted average effect of
     assumed conversions of preferred stock and
     warrants.........................................                    12,675
                                                                        --------
    Weighted average shares used in pro forma net loss
     per share, basic and diluted.....................                    14,879
                                                                        ========


                                      F-9


                                  TELIK, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)


  During all periods presented, the Company had securities outstanding which
could potentially dilute basic earnings per share in the future, but were
excluded from the computation of diluted net loss per share, as their effect
would have been antidilutive. These outstanding securities consist of the
following (in thousands) common stock equivalents:



                                                    Years ended December 31,
                                                --------------------------------
                                                   1997       1998       1999
                                                ---------- ---------- ----------
                                                             
   Convertible preferred stock................. 10,140,035 12,640,035 12,640,035
   Outstanding options.........................  2,135,686  2,996,376  2,991,787
   Preferred stock warrants....................     34,559     34,559     34,559


  Recent accounting pronouncements

  In June 1998, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards No. 133, "Accounting for Derivative Financial
Instruments and for Hedging Activities" ("SFAS 133"), which provides a
comprehensive and consistent standard for the recognition and measurement of
derivatives and hedging activities. SFAS 133 is effective for fiscal years
beginning after June 15, 2000 and is not anticipated to have an impact on the
Company's results of operations or financial condition when adopted as the
Company holds no derivative financial instruments and does not currently engage
in hedging activities.

2. Cash equivalents and short-term investments

  The following is a summary of cash equivalents and short-term investments:



                                                             Estimated Cost and
                                                                 Fair Value
                                                                December 31,
                                                             -------------------
                                                               1998      1999
                                                             --------- ---------
                                                               (In thousands)
                                                                 
   Cash equivalents:
    Money market fund....................................... $     223 $    107
    Corporate notes.........................................     1,973    1,843
                                                             --------- --------
                                                             $   2,196 $  1,950
                                                             ========= ========
   Short-term investments:
    U.S. Government notes................................... $   5,266 $    996
    Corporate notes.........................................     1,006    4,610
    Commercial paper........................................     4,934       --
    Certificate of deposit..................................     1,000       --
                                                             --------- --------
                                                             $  12,206 $  5,606
                                                             ========= ========


These are no unrealized gains or losses for the years ended December 31, 1999
and 1998.

                                      F-10


                                  TELIK, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)


3. Property and equipment

  Property and equipment consist of the following:



                                                                December 31,
                                                               ----------------
                                                                1998     1999
                                                               -------  -------
                                                               (In thousands)
                                                                  
   Laboratory furniture and equipment......................... $ 3,914  $ 4,137
   Office furniture and equipment.............................     383      400
   Leasehold improvements.....................................   1,099    1,099
                                                               -------  -------
                                                                 5,396    5,636
   Less accumulated depreciation and amortization.............  (3,830)  (4,439)
                                                               -------  -------
   Property and equipment, net................................ $ 1,566  $ 1,197
                                                               =======  =======


  Property and equipment includes assets under capitalized leases at December
31, 1998 and 1999 of approximately $525,000 and $53,000, respectively.
Accumulated amortization related to leased assets was approximately $366,000
and $20,000 at December 31, 1998 and 1999, respectively.

4. Lease obligations and equipment loans

  In September 1996, the Company entered into an equipment loan agreement with
a finance company under which the Company can borrow up to $1,500,000.
Equipment borrowings under this agreement totaled $688,000 and $237,000 at
December 31, 1998 and 1999, respectively. The borrowings bear interest at 8%
and the remaining principal balance of $237,000 is due in November 2000.

  The Company also has acquired certain equipment and furniture pursuant to
capital lease arrangements. At December 31, 1999, the future minimum capital
lease obligations are not significant.

  The Company occupies its facilities under an operating lease which expires in
December 2002. Rent expense under operating leases totaled $387,000, $466,000
and $497,000 for the years ended December 31, 1997, 1998 and 1999,
respectively. The Company has the option to renew the lease upon expiration for
an additional term of five years.

  At December 31, 1999, noncancelable future minimum lease payments under the
Company's operating leases are as follows (in thousands):


                                                                      
   Years ending December 31,
     2000............................................................... $  514
     2001...............................................................    535
     2002...............................................................    557
     2003...............................................................      1
                                                                         ------
                                                                         $1,607
                                                                         ======


                                      F-11


                                  TELIK, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)


5. Stockholders' equity

  Preferred stock

  In accordance with the provisions of the respective preferred stock
agreements, Series A, C and D preferred stock were converted into common stock
at the specified conversion price of $6.00 per share for Series A and C and
$3.00 per share for Series D.

  Series B, E, F, G, H, I and J preferred stock are convertible into common
stock at the option of the holder at conversion prices of $3.56, $3.00, $3.60,
$4.20, $5.55, $4.20 and $4.20 per share, respectively. These conversion prices
are subject to price-based antidilution adjustments for future stock issuances.
Series B, E, F, G, H, I and J preferred shares will automatically convert into
common stock at the earlier of (i) the closing of the Company's initial
underwritten public offering, or (ii) a vote or written consent of 2/3 of the
shares of all series of preferred stock then outstanding, voting together as a
single class or, in the case of Series J preferred stock, a vote or written
consent of 2/3 of the shares of Series J preferred stock then outstanding. All
preferred shares have voting rights equal to common stock on an as-if-converted
basis.

  The holders of Series B, E, F, G, H, I and J preferred stock are entitled to
receive noncumulative dividends, if declared, prior to and in preference to the
payment of dividends to holders of common stock. No dividends have been
declared through December 31, 1999.

  In the event of a liquidation or winding up of the Company, holders of Series
B convertible preferred stock shall have a liquidation preference of $20 and
the holders of Series E, F, G, H, I and J convertible preferred stock shall
each have a liquidation preference of $50 per share, together with any declared
but unpaid dividends, over holders of common shares.

  Preferred stock is issuable in series, with rights and preferences designated
by series. The shares designated, issued and outstanding at December 31, 1998
and 1999 are as follows:



                                                           Shares     Aggregate
                                                Shares   Issued and  Liquidation
                                              Authorized Outstanding Preference
                                              ---------- ----------- -----------
                                                        (In thousands)
                                                            
   Series B convertible......................    20,000      20,000    $   400
   Series E convertible......................   114,720     114,500      5,725
   Series F convertible......................   169,600     169,600      8,480
   Series G convertible......................   273,050     273,050     13,653
   Series H convertible......................    93,429      90,000      4,500
   Series I convertible......................   143,000     143,000      7,150
   Series J convertible......................   210,000     210,000     10,500
                                              ---------   ---------    -------
                                              1,023,799   1,020,150    $50,408
                                              =========   =========    =======


  Preferred stock warrants

  In connection with the negotiation of a secured note payable in December
1992, the Company issued warrants to purchase 220 shares of Series E preferred
stock at an exercise price of $50.00 per share. These warrants expire on the
earlier of December 31, 2002, the day preceding the closing date of the
Company's initial public offering or the day preceding the effective date of
any consolidation or merger of the Company, whichever is earlier. The value of
these warrants was determined to be immaterial.

                                      F-12


                                  TELIK, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)


  In September 1996, in conjunction with a loan agreement for the purchase of
property and equipment, the Company issued warrants that entitle the holder to
purchase 3,429 shares of Series H preferred stock at an exercise price of
$50.00 per share. These warrants are exercisable through August 31, 2003, the
day preceding the closing date of the Company's initial public offering or the
day preceding the effective date of any consolidation or merger of the Company,
whichever is earlier.

  1988 Stock option plan

  The 1988 Stock Option Plan (the "1988 Plan") was adopted in February 1989.
Options granted under the 1988 Plan may be either incentive stock options
("ISOs") or nonstatutory stock options ("NSOs"). At December 31, 1999, the
Company had authorized 905,017 shares of common stock for issuance under the
1988 Plan. Options granted under the 1988 Plan expire no later than 10 years
from the date of grant. For ISOs and NSOs, the option price shall be at least
100% and 85%, respectively, of the closing price of the Company's common stock
on the date of the grant, or in the event there is no public market for the
common stock, of the fair value on the date of the grant, as determined by the
board of directors. If, at any time the Company grants an option, and the
optionee directly or by attribution owns stock possessing more than 10% of the
total combined voting power of all classes of stock of the Company, the option
price shall be at least 110% of the fair value and shall not be exercisable
more than five years after the date of grant. Options generally vest over a
period of four years from the date of grant.

  1996 Stock Option Plan

  The 1996 Stock Option Plan (the "1996 Plan") was adopted in April 1996 with
terms similar to the 1988 Plan. At December 31, 1999, the Company had
authorized 2,238,816 shares of common stock for issuance under the 1996 Plan.

  Additional options were granted prior to the adoption of the 1988 and 1996
Plans, of which 22,768 are outstanding at December 31, 1999 and have expiration
dates ranging from June 2000 to June 2001.

                                      F-13


                                  TELIK, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)


  Stock option plans

  A summary of activity under the Company's stock option plans through December
31, 1999 is as follows:



                                Options Outstanding
                             --------------------------   Weighted-
                               Number    Exercise Price    Average
                             of Options    Per Share    Exercise Price
                             ----------  -------------- --------------
                                               
   Balance at December 31,
    1996.................... 1,967,850    $1.00-$1.60       $1.10
    Options granted.........   735,505    $      1.60       $1.60
    Options exercised.......   (19,207)   $1.00-$1.60       $1.40
    Options forfeited.......  (548,462)   $1.00-$1.60       $1.13
                             ---------
   Balance at December 31,
    1997.................... 2,135,686    $1.00-$1.60       $1.27
    Options granted......... 1,070,905    $      1.60       $1.60
    Options exercised.......    (3,550)   $      1.60       $1.60
    Options forfeited.......  (206,665)   $1.00-$1.60       $1.40
                             ---------
   Balance at December 31,
    1998.................... 2,996,376    $1.00-$1.60       $1.40
    Options granted.........   281,050    $      1.60       $1.60
    Options exercised.......   (11,243)   $1.00-$1.60       $1.04
    Options forfeited.......  (274,396)   $1.00-$1.60       $1.32
                             ---------
   Balance at December 31,
    1999.................... 2,991,787                      $1.40
                             =========
   Exercisable at December
    31, 1997................   696,250    $1.00-$1.60       $1.08
   Exercisable at December
    31, 1998................ 1,143,771    $1.00-$1.60       $1.19
   Exercisable at December
    31, 1999................ 1,757,992    $1.00-$1.60       $1.30


  At December 31, 1999, the Company has 174,814 shares available for grant
under its option plans. At December 31, 1999, the remaining outstanding options
expire at various dates through 2009 and have a weighted-average contractual
life of 7.42 years.

  The weighted average fair value of options granted during 1997, 1998 and 1999
was $0.44, $0.42 and $1.35, respectively.

  Pro forma information regarding net loss is required by FASB 123, and has
been determined as if the Company had accounted for its employee stock options
under the fair value method of that Statement. The fair value for these options
was estimated at the date of grant using the minimum value method using the
following weighted-average assumptions for years ended December 31, 1997, 1998
and 1999: risk-free interest rate of 6.23%, 6.23% and 6.53%, respectively; an
expected life of 5 years; and no dividends.

                                      F-14


                                  TELIK, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)


  For purposes of pro forma disclosures, the estimated fair value of the
options is amortized to expense over the vesting period of the options. The
Company's pro forma information follows (in thousands, except per share
amounts):



                                                   Years ended December 31,
                                                  ----------------------------
                                                    1997      1998      1999
                                                  --------  --------  --------
                                                             
   Net loss:
    As reported.................................. $ (8,618) $ (6,579) $ (7,064)
    Pro forma.................................... $ (8,728) $ (6,779) $ (7,346)
   Basic and diluted net loss per share:
   As reported................................... $  (3.95) $  (3.00) $  (3.21)
   Pro forma..................................... $  (4.00) $  (3.09) $  (3.33)


  The effects of applying SFAS 123 for pro forma disclosures are not likely to
be representative of the effects as reported net loss for future years.

  During 1998 and 1999, the Company issued 41,500 and 20,000 options,
respectively, to consultants in exchange for services performed for the
Company. For these option grants, the Company recognized an expense equal to
the estimated fair market value of the granted options on the date of the
grant. This amount was equal to $26,000 for 1998 and was immaterial for 1999.
In accordance with SFAS 123 and EITF 96-18, options granted to consultants are
periodically revalued as they vest.

  The Company has recorded deferred stock compensation with respect to options
granted to employees of approximately $260,000 in the year ended December 31,
1999, representing the difference between the exercise price of the options and
the deemed fair value of the common stock. These amounts are being amortized to
operations over the vesting periods of the options on a straight line basis.
The amortization expense was not material for the year ended December 31, 1999.

  Common stock reserved

  At December 31, 1999, the Company has 15,841,195 reserved shares of common
stock for future issuance as follows:



                                                                    December 31,
                                                                        1999
                                                                    ------------
                                                                 
   Preferred stock warrants........................................      34,559
   Incentive stock plan............................................   3,166,601
   Convertible preferred stock.....................................  12,640,035
                                                                     ----------
                                                                     15,841,195
                                                                     ==========


6. Collaborative agreements

  In December 1996, the Company entered into a collaboration and license
agreement with a Japanese pharmaceutical company focusing on diabetes. Under
the agreement, the Company granted an exclusive license to the Japanese
pharmaceutical company to manufacture, use and sell products based on the
Company's Target Related Affinity Profile (TRAP) technology within certain
countries in Asia. The Company will receive payments for certain research and
development activities, for achievement of specified development milestones and
for royalties on product sales, if any, in Asia. In December 1996, September
1997 and October 1998, the Japanese pharmaceutical company purchased 60,000
shares of Series H preferred stock ($3,000,000), 60,000 shares of Series I
preferred stock ($3,000,000) and 100,000 shares of Series J preferred stock
($5,000,000), respectively.

                                      F-15


                                  TELIK, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)


7. Income taxes

  As of December 31, 1999, the Company had federal and state net operating loss
carryforwards of approximately $46,100,000 and $3,700,000, respectively. The
Company also had federal research and development tax credit carryforwards of
approximately $1,400,000. The net operating loss and credit carryforwards will
expire at various dates beginning in the year 2005 through 2019, respectively
if not utilized.

  Utilization of the net operating loss and credit carryforwards may be subject
to a substantial annual limitation due to the ownership change limitations
provided by the Internal Revenue Code of 1986 and similar state provisions. The
annual limitation may result in the expiration of net operating losses and
credits before utilization.

  Deferred income taxes replace the net tax effects of temporary differences
between the carrying amounts of assets for financial reporting and the amount
used for income tax purposes. Significant components of the Company's deferred
tax assets are as follows (in thousands):



                                                             December 31,
                                                           ------------------
                                                             1998      1999
                                                           --------  --------
                                                               
   Deferred tax assets:
    Net operating loss carryforwards...................... $ 14,800  $ 16,000
    Capitalized research and development expenses.........    1,700     1,700
    Research credit carryforwards.........................    2,100     2,100
    Manufacturing and research equipment credit
     carryforward.........................................      100        --
    Other, net............................................      400     1,500
                                                           --------  --------
   Total deferred tax assets..............................   19,100    21,300
   Valuation allowance....................................  (19,100)  (21,300)
                                                           --------  --------
   Net deferred taxes..................................... $     --  $     --
                                                           ========  ========


  Due to the Company's lack of earnings history, the net deferred tax assets
have been fully offset by a valuation allowance. The valuation allowance
increased by $14,100,000, $5,000,000 and $2,200,000 during the years ended
December 31, 1997, 1998 and 1999, respectively.

8. Subsequent events (unaudited)

  Initial public offering

  In January 2000, the board of directors authorized the filing of a
registration statement with the Securities and Exchange Commission to register
shares of its common stock in connection with a proposed initial public
offering. If the offering contemplated by this prospectus is consummated, the
preferred stock outstanding as of the closing date will automatically be
converted into shares of the Company's common stock. The pro forma stockholders
equity and the accompanying balance sheet as of December 31, 1999 reflects
conversion of the outstanding preferred stock and warrants into 14,881,875
shares of common stock.

  Additional deferred compensation

  In March 2000, options to purchase 289,672 common shares were granted to
employees pursuant to the 1996 Stock Option Plan with an exercise price of
$2.00 per share. The company

                                      F-16


                                  TELIK, INC.

                   NOTES TO FINANCIAL STATEMENTS--(Continued)

estimates that additional deferred compensation of approximately $000,000 will
be recorded as a result of these options and amortized to compensation expense
in accordance with Telik's policy.

  2000 Employee Stock Purchase Plan

  In March 2000, subject to stockholder approval, the Company adopted its 2000
Employee Stock Purchase Plan (the "Purchase Plan"). A total of 250,000 shares
of the Company's common stock have been reserved for issuance under the
Purchase Plan. In addition, the Purchase Plan provides for annual increases in
the number of shares available for issuance under the Purchase Plan on each
anniversary date of the effective date of the offering. The number of shares
reserved automatically is equal to the lesser of 150,000 shares, 1% of the
outstanding shares on the date of the annual increase or such amount as may be
determined by the Board. The Purchase plan permits eligible employees to
purchase common stock at a discount through payroll deductions during defined
offering periods. The price at which the stock is purchased is equal to the
lower of 85% of the fair market value of the common stock on the first day of
the offering or 85% of the fair market value of the Company's common stock on
the purchase date. The initial offering period will commence on the effective
date of the offering.

  2000 Non-Employee Directors' Stock Option Plan

  In March 2000, subject to stockholder approval, the Company adopted the 2000
Non-Employee Directors' Stock Option Plan and reserved a total of 300,000
shares of common stock for issuance thereunder. Each non-employee director at
the IPO date will automatically be granted an option to purchase 20,000 shares
of common stock, and each non-employee director who subsequently becomes a
director of the Company will be automatically granted a nonstatutory stock
option to purchase 20,000 shares of common stock on the date on which such
person first becomes a director. At each Board meeting immediately following
each annual stockholders meeting, beginning with the first Board meeting after
the 2000 Annual Stockholders Meeting, each non-employee director will
automatically be granted a nonstatutory option to purchase 5,000 shares of
common stock or prorated for the part of the year served as non-employee
director. The exercise price of options under the Directors' Plan will be equal
to the fair market value of the common stock on the date of grant. The maximum
term of the options granted under the Directors' Plan is ten years. All grants
under the Directors' Plan will vest over a period of four years from date of
grant, one fourth vesting one year after the date of the grant and thereafter
the balance vesting monthly. The Directors' Plan will terminate in March 2010
unless terminated earlier in accordance with the provisions of the Directors'
Plan.

  2000 Equity Inventive Plan

  Subject to stockholder approval, the Company adopted the 2000 Equity
Incentive Plan and reserved 2,000,000 shares of the Company's common stock. In
addition the Incentive Plan provides for annual increases in the number of
shares available for issuance under the Incentive Plan.

  Series K Financing

  On March 31, 2000, the Company closed a private placement in which it sold
1,166,667 shares of Series K convertible preferred stock at $6.00 per share for
net proceeds of approximately $1,950,000 and a short-term note receivable of
$5,000,000. The note receivable bears interest at 6.28% and is due April 10,
2000. Series K preferred stock is convertible to common stock at any time on a
one-for-one basis and conversion is automatic if the IPO is consumated.

                                      F-17


Inside Back Cover Graphic

Title: Our proprietary TRAP technology accelerates drug discovery

Title: TRAP measures the interactions of small molecules with proteins

Legend: TRAP produces a profile, or fingerprint, that measures a property of
small molecules we believe is most relevant to drug discovery, their ability to
bind to proteins. Fingerprints are used to classify small molecules by their
type of interaction with a protein target.

Graphic Description: On the left-hand side is a representation of a chemical
compound. An arrow leads from this to a panel of four proteins indicated by
vertical bars and labeled P1, P2, P3 and P4. A series of three dots to the
right of P4 indicates that the panel actually contains additional proteins.
Each vertical bar has a distinctively shaped notch with a complementary shape
attached, which is labeled L1, L2, L3 and L4, and represents a ligand. An arrow
points right from these proteins to a vertical bar divided horizontally into
many sections, each colored a different shade of gray. Each section of the bar
represents the affinity of the compound for one of the proteins in the panel.
This bar is called the fingerprint of the compound.

Title: TRAP models the preferences of disease-related proteins for small
molecules

Legend: Modeling a new protein target begins by assaying a small set of
compounds with diverse affinity profiles for TRAP panel proteins, called a
training set. The TRAP panel proteins preferred by those compounds with
affinity for the new protein target are mathematically combined to simulate the
new protein target.

Graphic Description: On the left-hand side of the diagram, represented by a
gray colored vertical bar, is a new protein target. This target has a notch in
the center into which a complementary shape, representing a compound from our
library, or training set, is shown to be bound. An arrow points from the target
to a panel of four representative proteins, indicated by vertical bars, labeled
P1, P2, P3 and P4, whose notches contain elements of the notch in the target
protein. A series of three dots to the right of P4 indicates that the panel
actually contains additional proteins. The fingerprint for the compound, as
described in the picture above, is shown above the arrow. A second arrow points
from the panel of four proteins to a vertical bar representing a model and
containing in its center elements of the notches from the panel of proteins.
Above the arrow is a representation of a computer. A shape, complementary to
these elements, with the label hit, is bound to the notch. A third arrow points
from the model to a target. This target is identical to the model bar. In the
notch of this bar is a complementary shape that fits the notch better than the
previous hit shape and is labeled drug candidate. Above the arrow is another
representation of a fingerprint.

Black and White Picture in Text

Title: Insulin Receptor Activators

Legend: Telik's insulin receptor activators work within the cell to promote the
activation of the insulin receptor and initiate the series of events that leads
to the entry of sugar from the blood.

Graphic Description: This is a depiction of a fat, liver or muscle cell and
shows how the Telik insulin receptor activators enter the cell, bind to and
activate the insulin receptor. Insulin acting outside the cell causes a similar
activation. This stimulates a signaling pathway indicated by an arrow and
labeled, Signal. This signaling pathway leads to blood sugar entering the cell.


                               [TELIK, INC. LOGO]


                                    PART II

                     Information Not Required in Prospectus

Item 13. Other Expenses of Issuance and Distribution

  The following table sets forth the costs and expenses, other than the
underwriting discounts payable by us, in connection with the sale of common
stock being registered. All amounts are estimates except the SEC registration
fee, the NASD filing fee and the Nasdaq National Market listing fee.


                                                                     
   SEC registration fee................................................ $19,800
   NASD filing fee.....................................................       *
   Nasdaq National Market listing fee..................................       *
   Blue Sky fees and expenses..........................................       *
   Transfer agent and registrar fees...................................       *
   Accounting fees and expenses........................................       *
   Legal fees and expenses.............................................       *
   Printing and engraving costs........................................       *
   Miscellaneous expenses..............................................       *
                                                                        -------
     Total............................................................. $19,800
                                                                        =======

- -----------------
 * To be filed by Amendment.

Item 14. Indemnification of Directors and Officers

  As permitted by Delaware law, our amended and restated certificate of
incorporation provides that no director of ours will be personally liable to us
or our stockholders for monetary damages for breach of fiduciary duty as a
director, except for liability:

  . for any breach of duty of loyalty to us or to our stockholders;

  . for acts or omissions not in good faith or that involve intentional
    misconduct or a knowing violation of law;

  . for unlawful payment of dividends or unlawful stock repurchases or
    redemptions under Section 174 of the Delaware General Corporation Law; or

  . for any transaction from which the director derived an improper personal
    benefit.

  Our amended and restated certificate of incorporation further provides that
we must indemnify our directors and executive officers and may indemnify our
other officers and employees and agents to the fullest extent permitted by
Delaware law. We believe that indemnification under our amended and restated
certificate of incorporation covers negligence and gross negligence on the part
of indemnified parties.

  We have entered into indemnification agreements with each of our directors
and certain officers. These agreements, among other things, require us to
indemnify each director and officer for certain expenses including attorneys'
fees, judgments, fines and settlement amounts incurred by any such person in
any action or proceeding, including any action by or in the right of Telik,
arising out of the person's services as our director or officer, any subsidiary
of ours or any other company or enterprise to which the person provides
services at our request.

  The underwriting agreement (Exhibit 1.1) will provide for indemnification by
our underwriters of Telik, our directors, our officers who sign the
registration statement and our controlling persons for some liabilities,
including liabilities arising under the Securities Act.

                                      II-1


Item 15. Recent Sales of Unregistered Securities

  Since January 1, 1997, we have sold and issued unregistered securities to a
limited number of persons, as described below. None of these transactions
involved any underwriters, underwriting discounts or commissions, or any public
offering, and we believe that each transaction is exempt from the registration
requirements of the Securities Act by virtue of Section 4(2) thereof,
Regulation D promulgated thereunder or Rule 701 pursuant to compensatory
benefit plans and contracts relating to compensation as provided under Rule
701. The recipients of securities in each such transaction represented their
intention to acquire the securities for investment only and not with a view to
or for sale in connection with any distribution thereof, and appropriate
legends were affixed to the share certificates and instruments issued in such
transactions. We believe that all recipients had adequate access to information
about us, through their relationships with us.

  Since January 1, 1997, we have sold and issued the following unregistered
securities:

  (1) From January 1, 1988 to March 23, 2000, we granted incentive stock
options and nonstatutory stock options to purchase an aggregate of 4,648,182
shares of our common stock at exercise prices ranging from $1.00 to $2.00 per
share to employees, directors and consultants under the 1988 and 1996 Stock
Option Plans and outside of the plans and issued an aggregate of 281,842 shares
upon the exercise of these options. Options to purchase 1,269,822 shares of
common stock have been canceled, and 159,140 of these options have lapsed
without being exercised.

  (2) From September 24, 1997 to November 13, 1997, we sold an aggregate of
143,000 shares of our Series I preferred stock to 21 purchasers at a purchase
price of $50.00 per share.

  (3) From September 30, 1998 to October 29, 1998, we sold an aggregate of
210,000 shares of our Series J preferred stock to two purchasers at a purchase
price of $50.00 per share.

  (4) On March 31, 2000 we sold an aggregate of 1,166,667 shares of our Series
K preferred stock to three purchasers at a purchase price of $6.00 per share.

                                      II-2


Item 16. Exhibits and Financial Statement Schedules


     
  1.1*  Form of Underwriting Agreement.

  3.1   Form of Amended and Restated Certificate of Incorporation of Registrant
        to be effective upon the closing of the offering made pursuant to this
        Registration Statement.

  3.2   Amended and Restated Bylaws of Registrant to be effective upon the
        closing of the offering made pursuant to this Registration Statement.

  3.3   Amended and Restated Certificate of Incorporation, as amended.

  4.1*  Specimen Common Stock Certificate.

  4.2   Amended and Restated Registration Rights Agreement, dated March 31,
        2000, between Registrant and holders of Registrant's Series B, Series
        E, Series F, Series G, Series H, Series I, Series J and Series K
        preferred stock.

  4.3   Warrant issued to Steven M. Costella, Trustee under the Steven M.
        Costella Trust, for purchase of shares of Series E preferred stock.

  4.4   Warrant issued to William Kirsch for purchase of shares of Series E
        preferred stock.

  4.5   Warrant issued to Glen McLaughlin for purchase of shares of Series E
        preferred stock.

  4.6   Warrant issued to Venture Lending and Leasing, Inc. for purchase of
        shares of Series H preferred stock.

  5.1*  Opinion of Cooley Godward llp.

 10.1   Form of Indemnity Agreement.

 10.2   2000 Equity Incentive Plan and related documents.

 10.3   2000 Employee Stock Purchase Plan and Offering.

 10.4   2000 Non-Employee Directors' Stock Option Plan and Agreement.

 10.5++ Collaborative Research Agreement between Registrant and Sankyo Company,
        Ltd., dated March 24, 1999, as amended.

 10.6++ Collaboration Agreement between Registrant and Sanwa Kagaku Kenkyusho
        Co., Ltd., dated December 20, 1996, as amended.

 10.7++ License Agreement between Registrant and Sanwa Kagaku Kenkyusho Co.,
        Ltd., dated September 24, 1997, as amended.

 10.8++ Screening Services Agreement between Registrant and Sanwa Kagaku
        Kenkyusho Co., Ltd., dated December 20, 1996, as amended.

 10.9   Consulting Agreement for Individual Consultants between Gail L. Brown,
        MD and Registrant, dated October 20, 1998, as amended.

 10.10  Employment Agreement between Cynthia M. Butitta and Registrant, dated
        July 1, 1998.

 10.11  Employment Agreement between Reinaldo F. Gomez, PhD and Registrant,
        dated April 18, 1991, as amended.

 10.12  Employment Agreement between Michael M. Wick, MD, PhD and Registrant,
        dated December 10, 1997, as amended.

 10.13  Lease between Registrant and Chamberlin Associates--Oyster Point Phase
        I L.P., dated July 25, 1997, as amended.

 23.1   Consent of Ernst & Young llp, Independent Auditors.

 23.2*  Consent of Cooley Godward llp (included in Exhibit 5.1).

 24.1   Power of Attorney (contained on signature page).

 27.1   Financial Data Schedule.

- -----------------
*  To be filed by amendment.
++ Confidential treatment requested as to specific portions, which portions are
   omitted and filed separately with the Securities and Exchange Commission.


                                      II-3


Item 17. Undertakings

  The undersigned registrant hereby undertakes to provide to the Underwriters
at the closing specified in the Underwriting Agreement certificates in such
denominations and registered in such names as required by the Underwriters to
permit prompt delivery to each purchaser.

  Insofar as indemnification by the registrant for liabilities arising under
the Securities Act may be permitted to directors, officers and controlling
persons of the registrant pursuant to the provisions referenced in Item 14 of
this Registration Statement or otherwise, the registrant has been advised that
in the opinion of the Securities and Exchange Commission such indemnification
is against public policy as expressed in the Securities Act, and is, therefore,
unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by the registrant of expenses incurred or
paid by a director, officer, or controlling person of the registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered hereunder, the registrant will, unless in the opinion of its counsel
the matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is
against public policy as expressed in the Securities Act and will be governed
by the final adjudication of such issue.

  The undersigned registrant hereby undertakes that:

  (1) For purposes of determining any liability under the Securities Act, the
information omitted from the form of Prospectus filed as part of this
registration statement in reliance upon Rule 430A and contained in a form of
Prospectus filed by the registrant pursuant to Rule 424(b)(1) or (4) or 497(h)
under the Securities Act shall be deemed to be part of this Registration
Statement as of the time it was declared effective.

  (2) For the purpose of determining any liability under the Securities Act,
each post-effective amendment that contains a form of Prospectus shall be
deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.

                                      II-4


                                   SIGNATURES

  Pursuant to the requirements of the Securities Act of 1933, as amended, the
registrant has duly caused this Registration Statement to be signed on its
behalf by the undersigned, thereunto duly authorized, in the City of South San
Francisco, State of California, on the   day of March 31, 2000.

                                          Telik, Inc.

                                                /s/ Michael M. Wick, MD, PhD
                                          By:
                                             __________________________________
                                                Michael M. Wick, MD, PhD
                                                 Chief Executive Officer

                               POWER OF ATTORNEY

  KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears
below hereby constitutes and appoints Michael M. Wick and Cynthia M. Butitta,
and each of them, his or her true and lawful agent, proxy and attorney-in-fact,
with full power of substitution and resubstitution, for him or her and in his
or her name, place and stead, in any and all capacities, to (i) act on, sign
and file with the Securities and Exchange Commission any and all amendments
(including post-effective amendments) to this registration statement together
with all schedules and exhibits thereto and any subsequent registration
statement filed pursuant to Rule 462(b) under the Securities Act of 1933, as
amended, together with all schedules and exhibits thereto, (ii) act on, sign
and file such certificates, instruments, agreements and other documents as may
be necessary or appropriate in connection therewith, (iii) act on and file any
supplement to any prospectus included in this registration statement or any
such amendment or any subsequent registration statement filed pursuant to Rule
462(b) under the Securities Act of 1933, as amended, and (iv) take any and all
actions which may be necessary or appropriate to be done, as fully for all
intents and purposes as he or she might or could do in person, hereby
approving, ratifying and confirming all that such agent, proxy and attorney-in-
fact or any of his substitutes may lawfully do or cause to be done by virtue
thereof.



              Signature                             Title                    Date

                                                                 
     /s/ Michael M. Wick, MD, PhD      President, Chief Executive       March 31, 2000
______________________________________  Officer and Director
       Michael M. Wick, MD, PhD         (Principal Executive Officer)

        /s/ Cynthia M. Butitta         Chief Financial Officer          March 31, 2000
______________________________________  (Principal Finance and
          Cynthia M. Butitta            Accounting Officer)

        /s/ Jean Deleage, PhD          Director                         March 31, 2000
______________________________________
          Jean Deleage, PhD

         /s/ David R. Bethune          Director                         March 31, 2000
______________________________________
           David R. Bethune
     /s/ David W. Martin, Jr., MD      Director                         March 31, 2000
______________________________________
       David W. Martin, Jr., MD


                                      II-5




              Signature                      Title                    Date

                                                   
        /s/ Stefan Ryser, PhD              Director      March 31, 2000
______________________________________
          Stefan Ryser, PhD

         /s/ Jerrold L. Glick              Director      March 31, 2000
______________________________________
   Jerrold L. Glick



                                      II-6


                                 EXHIBIT INDEX


     
  1.1*  Form of Underwriting Agreement.

  3.1   Form of Amended and Restated Certificate of Incorporation of Registrant
        to be effective upon the closing of the offering made pursuant to this
        Registration Statement.

  3.2   Amended and Restated Bylaws of Registrant to be effective upon the
        closing of the offering made pursuant to this Registration Statement.

  3.3   Amended and Restated Certificate of Incorporation, as amended.

  4.1*  Specimen Common Stock Certificate.

  4.2   Amended and Restated Registration Rights Agreement, dated March 31,
        2000, between Registrant and holders of Registrant's Series B, Series
        E, Series F, Series G, Series H, Series I, Series J and Series K
        preferred stock.

  4.3   Warrant issued to Steven M. Costella, Trustee under the Steven M.
        Costella Trust, for purchase of shares of Series E preferred stock.

  4.4   Warrant issued to William Kirsch for purchase of shares of Series E
        preferred stock.

  4.5   Warrant issued to Glen McLaughlin for purchase of shares of Series E
        preferred stock.

  4.6   Warrant issued to Venture Lending and Leasing, Inc. for purchase of
        shares of Series H preferred stock.

  5.1*  Opinion of Cooley Godward llp.

 10.1   Form of Indemnity Agreement.

 10.2   2000 Equity Incentive Plan and related documents.

 10.3   2000 Employee Stock Purchase Plan and Offering.

 10.4   2000 Non-Employee Directors' Stock Option Plan and Agreement.

 10.5++ Collaborative Research Agreement between Registrant and Sankyo Company,
        Ltd., dated March 24, 1999, as amended.

 10.6++ Collaboration Agreement between Registrant and Sanwa Kagaku Kenkyusho
        Co., Ltd., dated December 20, 1996, as amended.

 10.7++ License Agreement between Registrant and Sanwa Kagaku Kenkyusho Co.,
        Ltd., dated September 24, 1997, as amended.

 10.8++ Screening Services Agreement between Registrant and Sanwa Kagaku
        Kenkyusho Co., Ltd., dated December 20, 1996, as amended.

 10.9   Consulting Agreement for Individual Consultants between Gail L. Brown,
        MD and Registrant, dated October 20, 1998, as amended.

 10.10  Employment Agreement between Cynthia M. Butitta and Registrant, dated
        July 1, 1998.

 10.11  Employment Agreement between Reinaldo F. Gomez, PhD and Registrant,
        dated April 18, 1991, as amended.

 10.12  Employment Agreement between Michael M. Wick, MD, PhD and Registrant,
        dated December 10, 1997, as amended.

 10.13  Lease between Registrant and Chamberlin Associates--Oyster Point Phase
        I L.P., dated July 25, 1997, as amended.

 23.1   Consent of Ernst & Young llp, Independent Auditors.

 23.2*  Consent of Cooley Godward llp (included in Exhibit 5.1).

 24.1   Power of Attorney (contained on signature page).

 27.1   Financial Data Schedule.

- -----------------
*  To be filed by amendment.
++ Confidential treatment requested as to specific portions, which portions are
   omitted and filed separately with the Securities and Exchange Commission.