‘Double-drugs’— A new class of prodrug form of an HIV protease inhibitor conjugated with a reverse transcriptase inhibitor by a spontaneously cleavable linker
作者:Hikaru Matsumoto、Tomonori Hamawaki、Hisashi Ota、Tooru Kimura、Toshiyuki Goto、Kouichi Sano、Yoshio Hayashi、Yoshiaki Kiso
DOI:10.1016/s0960-894x(00)00202-x
日期:2000.6
We designed and synthesized a new series of prodrug-type anti-HIV agents consisting of a peptidomimetic HIV protease inhibitor conjugated with a nucleoside reverse transcriptase inhibitor in an effort to enhance the antiviral activity. For the conjugation, a series of linkers that conjoin the two different classes of inhibitors have been investigated. Conjugates using a succinyl amino acid linker were shown to release the parent components via the spontaneous imide formation at a faster rate compared to conjugates using a glutaryl amino acid linker, as expected from the energetically favorable cyclization to the five-membered ring. Herein, we report a new 'double-drug' 4b (KNI-1039) with a glutarylglycine linker, which exhibited extremely potent anti-HIV activity compared with that of the individual components. (C) 2000 Elsevier Science Ltd. All rights reserved.