Synthesis and structure-activity relationships of a series of penicillin-derived HIV proteinase inhibitors containing a stereochemically unique peptide isostere
作者:Duncan S. Holmes、Richard C. Bethell、Nicholas Cammack、Ian R. Clemens、John Kitchin、Peter McMeekin、Chi L. Mo、David C. Orr、Binakumari Patel
DOI:10.1021/jm00073a012
日期:1993.10
A series of HIV-1 proteinase inhibitors was synthesized based upon a single penicillin derived thiazolidine moiety. Reaction of the C-4 carboxyl group with (R)-phenylalaninol gave amide 10 which was a moderately potent inhibitor of HIV-1 proteinase (IC50 = 0.15 microM). Further modifications based on molecular modeling studies led to compound 48 which contained a stereochemically unique statine-based
基于单个青霉素衍生的噻唑烷部分合成了一系列HIV-1蛋白酶抑制剂。C-4羧基与(R)-苯丙氨醇的反应得到酰胺10,它是HIV-1蛋白酶的中等有效抑制剂(IC50 =0.15μM)。基于分子模型研究的进一步修饰导致化合物48包含立体化学独特的基于他汀类的等排物。这是一种有效的竞争性抑制剂(Ki = 0.25 nM),在体外具有针对HIV-1的抗病毒活性(5 microM)。试图修饰苄基以改善与S2'口袋的相互作用,或者引入氢键供体基团以与残基Gly48'相互作用均未导致改善的抑制或抗病毒活性。