Synthesis and antiviral property of allophenylnorstatine-based HIV protease inhibitors incorporating D-cysteine derivatives as P2/P3 moieties.

Ei'ichi Ami, Koichiro Nakahara, Akihiko Sato, Jeffrey-Tri Nguyen, Koushi Hidaka, Yoshio Hamada, Shingo Nakatani, Tooru Kimura, Yoshio Hayashi, Yoshiaki Kiso

Department of Medicinal Chemistry, Center for Frontier Research in Medicinal Science and 21st Century COE Program, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8412, Japan.

Bioorganic & medicinal chemistry letters 2007 Aug 1

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We designed several HIV protease inhibitors with various d-cysteine derivatives as P(2)/P(3) moieties based on the structure of clinical drug candidate, KNI-764. Herein, we report their synthesis, HIV protease inhibitory activity, HIV IIIB cell inhibitory activity, cellular toxicity, and inhibitory activity against drug-resistant HIV strains. KNI-1931 showed distinct selectivity against HIV proteases and high potency against drug-resistant strains, surpassing those of Ritonavir and Nelfinavir.

Citation

Ei'ichi Ami, Koichiro Nakahara, Akihiko Sato, Jeffrey-Tri Nguyen, Koushi Hidaka, Yoshio Hamada, Shingo Nakatani, Tooru Kimura, Yoshio Hayashi, Yoshiaki Kiso. Synthesis and antiviral property of allophenylnorstatine-based HIV protease inhibitors incorporating D-cysteine derivatives as P2/P3 moieties. Bioorganic & medicinal chemistry letters. 2007 Aug 1;17(15):4213-7