AUDITOR CONSENT - VITALE, CATURANO & COMPANY, LTD.
Published on December 3, 2008
EXHIBIT
23.3
CONSENT
OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We
consent to the inclusion in this Registration Statement on Form S-4, of our
report dated March 12, 2008, with respect to our audit of the consolidated
balance sheet of MacroChem Corporation, as of December 31, 2007 and 2006, and
the related statements of operations, stockholders' deficit/equity, and cash
flows for each of the years in the three-year period ended December 31, 2007. We
also consent to the reference to our firm under the heading "Experts" in such
Registration Statement.
/s/
Vitale, Caturano & Company, Ltd.
Boston,
Massachusetts
December
1, 2008