Immutep 10-Q 2007 Q3 Quarterly report

Exhibit 32.1

Certification

pursuant to 18 U.S.C. Section 1350,

as adopted pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

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In connection with the Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 on Form 10-Q of Immtech Pharmaceuticals, Inc. (the “Company”) for the quarterly period ended December 31, 2006, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Eric L. Sorkin, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Eric L. Sorkin

Eric L. Sorkin

President & Chief Executive Officer

February 9, 2007