THE  SECURITIES  REPRESENTED  HEREBY  HAVE NOT BEEN  REGISTERED  UNDER  THE
     SECURITIES  ACT OF 1933 (THE "ACT") OR APPLICABLE  STATE LAW AND MAY NOT BE
     OFFERED,  SOLD, OR OTHERWISE  TRANSFERRED,  PLEDGED, OR HYPOTHECATED UNLESS
     AND UNTIL  REGISTERED  UNDER THE ACT OR STATE  LAW OR,  IN THE  OPINION  OF
     COUNSEL IN FORM AND SUBSTANCE SATISFACTORY TO THE ISSUER OF THE SECURITIES,
     SUCH OFFER,  SALE, OR TRANSFER,  PLEDGE,  OR HYPOTHECATION IS IN COMPLIANCE
     THEREWITH.

                  Void after 5:00 p.m., Pacific Standard Time
                                on May 27, 2007


                                     WARRANT

     This certifies that, for value received, Healthcare Enterprise Group, Inc.,
a Delaware  corporation,  or registered  assigns (the "Holder"),  is entitled to
purchase at a price of  ($0.00384615384615)  per share (the  "Exercise  Price"),
subject  to  the   provisions  of  this  Warrant,   from  Cancer   Therapeutics,
Incorporated, a Tennessee corporation (the "Company"), Six Million, Five Hundred
Thousand (6,500,000) shares of the unregistered Common Stock of the Company. The
shares of common stock  issuable  from the exercise of the Warrant are hereafter
referred to as the "Warrant Stock".

1. Exercise of Warrant. This Warrant may be exercised in whole or in part at any
time or from time to time on or after January 1, 2005, but not later than 5:00
p.m., Pacific Daylight Time, on May 27, 2007, or if such date is a day on which
federal or state chartered banking institutions are authorized by law to close,
then on the next succeeding day which shall not be such a day, by presentation
and surrender thereof to the Company at its principal office, with the Purchase
Form annexed hereto duly executed and accompanied by payment, in cash or by
certified or official bank check, payable to the order of the Company, of the
Exercise Price for the number of shares of Warrant Stock specified in such form,
together with all taxes applicable upon such exercise. If this Warrant should be
exercised in part only, the Company shall upon surrender of this Warrant for
cancellation, execute and deliver a new Warrant of the same tenor evidencing the
right of the Holder to purchase the balance of the shares of Warrant Stock
purchasable hereunder upon the same terms and conditions as herein set forth.

2. Fractional Shares. No fractional shares or stock representing fractional
shares shall be provided by the Company upon the exercise of this Warrant. In
lieu of any fractional shares which would otherwise be issuable, the Company
shall pay cash equal to the product of such fraction multiplied by the fair
market value of one share of the Warrant Stock on the date of exercise, as
determined in good faith by the Company.

3. Transfer, Exchange, Assignment or Loss of Warrant.


                                       1


     3.1 This  Warrant  may not be assigned  or  transferred  except as provided
herein and in accordance  with and subject to the  provisions of the  Securities
Act of 1933 and the Rules and Regulations  promulgated  thereunder (said Act and
such Rules and Regulations  being  hereinafter  collectively  referred to as the
"Act").  Any purported transfer or assignment made other than in accordance with
this  Section 3 and Section 7 hereof  shall be null and void and of no force and
effect.

     3.2 This  Warrant  may be  transferred  or  assigned  only with the written
consent of the Company,  which shall not be unreasonably  withheld. In addition,
this Warrant shall be transferable only upon the opinion of counsel satisfactory
to the Company,  which may be counsel to the Company, that (i) the transferee is
a person to whom the Warrant  may be legally  transferred  without  registration
under the Act; and (ii) such  transfer  will not violate any  applicable  law or
governmental rule or regulation  including,  without limitation,  any applicable
federal or state securities law, as further referenced in Section 7 below. Prior
to the transfer or assignment,  the assignor or transferor  shall  reimburse the
Company for its reasonable  expenses,  including  attorneys'  fees,  incurred in
connection with the transfer or assignment.

     3.3 Any assignment  permitted  hereunder shall be made by surrender of this
Warrant to the Company at its principal  office with the Assignment Form annexed
hereto duly executed and funds sufficient to pay any transfer tax. In such event
the Company shall, without charge, execute and deliver a new Warrant in the name
of the assignee  named in such  instrument of assignment  and this Warrant shall
promptly  be  cancelled.  This  Warrant  may be divided or  combined  with other
Warrants which carry the same rights upon presentation  thereof at the principal
office of the  Company  together  with a  written  notice  signed by the  Holder
thereof,  specifying the names and denominations in which new Warrants are to be
issued.  The terms "Warrant" and "Warrants" as used herein includes any Warrants
in substitution  for or replacement of this Warrant,  or into which this Warrant
may be divided or exchanged.

     3.4 Upon receipt by the Company of evidence satisfactory to it of the loss,
theft,  destruction  or mutilation  of this  Warrant,  and (in the case of loss,
theft or  destruction)  of  reasonably  satisfactory  indemnification,  and upon
surrender  and  cancellation  of this Warrant,  if  mutilated,  the Company will
execute  and  deliver a new  Warrant  of like  tenor and date and any such lost,
stolen, destroyed or mutilated Warrant shall thereupon become void. Any such new
Warrant  executed and  delivered  shall  constitute  an  additional  contractual
obligation  on the part of the  Company,  whether  or not the  Warrant  so lost,
stolen, destroyed or mutilated shall be at any time enforceable by anyone.

     3.5 Each  Holder of this  Warrant,  the  shares  of  Warrant  Stock  issued
hereunder  or any other  security  issued or issuable  upon the exercise of this
Warrant  shall  indemnify  and hold  harmless the  Company,  its  directors  and
officers, and each person, if any, who controls the Company, against any losses,
claims,  damages or liabilities,  joint or several,  to which the Company or any
such  director,  officer or any such person may become  subject under the Act or
statute or common law, insofar as such losses,  claims,  damages or liabilities,
or actions in respect thereof, arise out of or are based upon the disposition by
such  Holder of the  Warrant,  the shares of Warrant  Stock  acquired  under the
Warrant, or other such securities in violation of this Warrant.

4. Rights of the Holder. The Holder shall not, by virtue hereof, be entitled to
any rights of a shareholder in the Company, either at law or equity, and the

                                       2


rights of the Holder are limited to those expressed in this Warrant and are not
enforceable against the Company except to the extent set forth herein.

5. Demand Registration Rights.

     5.1 Demand Registration.

          (a) If the Company shall receive,  at any time during the two (2) year
     period  commencing  January 1, 2005, a written request from the Holder that
     the  Company  file a  registration  statement  under the Act  covering  the
     registration of the Warrant Stock, then as soon as practicable  thereafter,
     and subject to the limitations and  restrictions  contained in this Section
     5, the  Company  shall  use its  reasonable  best  efforts  to  effect  the
     registration  of all of the  shares  of  Warrant  Stock  which  the  Holder
     requests to be registered.

          (b)  The  Company  is   obligated   to  effect  only  one  (1)  demand
     registration pursuant to this Section 5.

          5.2 Obligations of the Company.  Whenever  required under Section 5 to
     use its reasonable  best efforts to effect the  registration of any Warrant
     Stock, the Company shall do the following as expeditiously as possible:

          (a)  Prepare  and file  with  the SEC a  registration  statement  with
     respect to such Warrant Stock and use its reasonable  best efforts to cause
     such registration statement to become and remain effective.

          (b) Prepare and file with the SEC such  amendments and  supplements to
     such  registration   statements  and  the  prospectus  used  in  connection
     therewith to comply with the requirements of the Act.

          (c)  Furnish  to the  Holder  such  number of  copies of a  prospectus
     (including a preliminary  prospectus),  in conformity with the requirements
     of the Act, and such other  documents as the Holder may reasonably  request
     in order to  facilitate  the  disposition  of the Warrant  Stock to be sold
     under the registration statement.

          (d) Use its  reasonable  best  efforts to  register  and  qualify  the
     securities  covered by such  registration  statements  under the securities
     laws of such states of the United States as shall be reasonably appropriate
     for  the  distribution  of the  securities  covered  by  such  registration
     statement.

     5.3 Expenses of Registration.  All expenses incurred in connection with any
registration, qualification, or compliance pursuant to Section 5 of this Warrant
shall be borne by the Company.

     5.4 Rule 144  Reporting.  With a view to making  available  the benefits of
certain  rules  and  regulations  of the SEC which  may  permit  the sale of any
outstanding shares to the public without registration,  the Company agrees after
any registration to use its best efforts to:

                                       3


          (a) make and keep  public  information  available,  as those terms are
     understood and defined in Rule 144 under the Securities  Act, at all times;
     and

          (b)  file  with the SEC in a  timely  manner  all  reports  and  other
     documents required of the Company under the Act and the Securities Exchange
     Act of  1934,  as  amended,  as long  as it is  subject  to such  reporting
     requirements.

     5.5 No Transfer of Registration  Rights. The rights to cause the Company to
register the Warrant  Stock under this Warrant may not be assigned by the Holder
without the written consent of the Company.

6. Adjustment of Exercise Price and Number of Shares. The number and kind of
securities issuable upon the exercise of this Warrant and the Exercise Price of
such securities shall be subject to adjustment from time to time upon the
happening of certain events as follows:

     6.1 Adjustment for Dividends in Stock.  In case at any time or from time to
time on or after the date hereof the holders of the Common  Stock of the Company
(or any  shares of stock or other  securities  at the time  receivable  upon the
exercise of this Warrant) shall have  received,  or, on or after the record date
fixed for the determination of eligible stockholders, shall have become entitled
to receive without payment therefor, other or additional stock of the Company by
way of dividend,  then and in each case, the Holder of this Warrant shall,  upon
the exercise hereof be entitled to receive,  in addition to the number of shares
of Warrant Stock  receivable  thereupon,  and without  payment of any additional
consideration  therefor, the amount of such other or additional stock of Company
which such Holder would hold on the date of such exercise had it been the holder
of record of such shares of Warrant Stock on the date hereof and had thereafter,
during the period from the date hereof to and  including  the  additional  stock
receivable  by  it as  aforesaid  during  such  period,  giving  effect  to  all
adjustments  called for during  such  period by  paragraphs  (a) and (b) of this
Section 6.

     6.2 Adjustment for  Reclassification,  Reorganization or Merger. In case of
any  reclassification or change of the outstanding  securities of the Company or
of any  reorganization  of the  Company (or any other  corporation  the stock or
securities  of  which  are at the time  receivable  upon  the  exercise  of this
Warrant) on or after the date hereof,  or in case,  after such date, the Company
(or any such other corporation) shall merge with or into another  corporation or
convey all or substantially all of its assets to another  corporation,  then and
in each such case the Holder of this  Warrant,  upon the exercise  hereof at any
time after the consummation of such  reclassification,  change,  reorganization,
merger or  conveyance,  shall be entitled  to  receive,  in lieu of the stock or
other securities and property  receivable upon the exercise hereof prior to such
consummation,  the stock or other securities or property which such Holder would
have been entitled  upon such  consummation  if such Holder had  exercised  this
Warrant  immediately prior thereto. In each such case, the terms of this Section
6 shall be  applicable  to the  shares  of stock  or other  securities  properly
receivable upon the exercise of this Warrant after such consummation.

     6.3 Stock Splits and Reverse Stock  Splits.  If at any time on or after the
date hereof the Company shall subdivide its outstanding  shares of Warrant Stock
into a greater number of shares,  the Exercise Price in effect immediately prior

                                       4


to such subdivision shall thereby be  proportionately  reduced and the number of
shares of Warrant Stock receivable upon exercise of the Warrant shall thereby be
proportionately  increased; and, conversely, if at any time on or after the date
hereof the outstanding  number of shares of Warrant Stock shall be combined into
a smaller number of shares,  the Exercise Price in effect  immediately  prior to
such combination  shall thereby be  proportionately  increased and the number of
shares of Warrant Stock receivable upon exercise of the Warrant shall thereby be
proportionately decreased.

7. Transfer to Comply with the Securities Act of 1933.

     7.1 Unless  registered  under the Act  pursuant  to Section 5 herein,  this
Warrant and the shares of Warrant Stock issued  hereunder or any other  security
issued or issuable upon exercise of this Warrant may not be sold, transferred or
otherwise  disposed  of,  except to a person  who,  in the  opinion  of  counsel
reasonably satisfactory to the Company, is a person to whom this Warrant or such
shares of Warrant Stock may legally be transferred  pursuant to Section 3 hereof
without  registration and without the delivery of a current prospectus under the
Act with respect  thereto and then only against  receipt of an agreement of such
person to comply with the provision of this Section 7 with respect to any resale
or other disposition of such securities  unless, in the opinion of such counsel,
such agreement is not required.

     7.2 Unless  registered  under the Act  pursuant  to  Section 5 herein,  the
Company  may cause  the  following  legend  to be set forth on each  certificate
representing  shares of Warrant Stock  acquired  under this Warrant or any other
security  issued or issuable upon exercise of this Warrant,  unless  counsel for
the  Company is of the  opinion as to any such  certificate  that such legend is
unnecessary:

     THE  SECURITIES  REPRESENTED  HEREBY  HAVE NOT BEEN  REGISTERED  UNDER  THE
     SECURITIES  ACT OF 1933 (THE "ACT") OR APPLICABLE  STATE LAW AND MAY NOT BE
     OFFERED,  SOLD, OR OTHERWISE  TRANSFERRED,  PLEDGED, OR HYPOTHECATED UNLESS
     AND UNTIL  REGISTERED  UNDER THE ACT OR STATE  LAW OR,  IN THE  OPINION  OF
     COUNSEL IN FORM AND SUBSTANCE SATISFACTORY TO THE ISSUER OF THE SECURITIES,
     SUCH OFFER,  SALE, OR TRANSFER,  PLEDGE,  OR HYPOTHECATION IS IN COMPLIANCE
     THEREWITH.

     7.3  Governing  Law.  This Warrant  shall be governed by, and  construed in
accordance with, the laws of the State of California  excluding that body of law
pertaining to conflicts of law.

     7.4 Notice.  Notices and other  communications to be given to the Holder of
the Warrants evidenced by this certificate shall be delivered by hand or mailed,
postage prepaid, to or such other address as the Holder shall have designated by
written   notice  to  the   Company  as  provided   herein.   Notices  or  other
communications to the Company shall be deemed to have been sufficiently given if
delivered by hand or mailed  postage  prepaid to the Company at 412 Chelsa Cove,
Franklin,  Tennessee 37064, attn: Robert K. Oldham, or such other address as the
Company shall have  designated  by written  notice to such  registered  owner as
herein  provided.  Notice by mail shall be deemed  given when  deposited  in the
United States mail, postage prepaid, as herein provided.


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                            [CONTINUED ON NEXT PAGE]

                                       6



         IN WITNESS WHEREOF, the authorized officer of the Company has executed
this Warrant to be effective as of the date first set forth above.

                                    Cancer Therapeutics, Incorporated
                                    a Tennessee corporation


                                    By:
                                    -----------------------------------------
                                         Robert K. Oldham, President


                                       7



                                  PURCHASE FORM


         The undersigned hereby irrevocably elects to exercise the within
Warrant to the extent of purchasing _________ shares of Warrant Stock, and
hereby makes payment of $________ in payment of the actual exercise price
thereof.



                                 ------------------------------------
                                 Signature



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


                                 ASSIGNMENT FORM



FOR VALUE RECEIVED, ----------------------- hereby sells, assigns and transfers
                       (please type or print)
unto
     --------------------------------------------------------------------------
                       (please type or print)

- -------------------------------------------------------------------------------
                             (address)

the right to purchase shares of Warrant Stock represented by this Warrant to the
extent of __________ shares as to which such right is exercisable, and does
hereby irrevocably constitute and appoint the Company and/or its transfer agent
as attorney to transfer the same on the books of the Company with full power of
substitution in the premises.



                                 ------------------------------------
                                 Signature


                                       8