Design of MKC-442 (Emivirine) Analogues with Improved Activity Against Drug-Resistant HIV Mutants
作者:Andrew L. Hopkins、Jingshan Ren、Hiromichi Tanaka、Masanori Baba、Mika Okamato、David I. Stuart、David K. Stammers
DOI:10.1021/jm990192c
日期:1999.11.1
Two analogues of the nonnucleoside inhibitor of HIV-1 RT, MKC-442 (emivirine), containing different C6 substituents have been designed to be less susceptible to the commonly found drug-resistance mutation of Tyr181Cys. Compound TNK-6123 had a C6 thiocyclohexyl group designed to have more flexibility in adapting to the mutated drug-binding site. GCA-186 had additional 3',5'-dimethyl substituents aimed
HIV-1 RT的非核苷抑制剂的两个类似物MKC-442(emivirine)含有不同的C6取代基,它们被设计为对Tyr181Cys的常见耐药性突变较不敏感。化合物TNK-6123具有一个C6硫代环己基,旨在更灵活地适应突变的药物结合位点。GCA-186具有额外的3',5'-二甲基取代基,旨在与保守残基Trp229形成紧密接触。这两种化合物对Tyr181Cys突变病毒以及对临床上很重要的Lys103Asn病毒的抑制作用都比MKC-442大约30倍。X射线晶体结构与HIV-1 RT配合物的测定证实了预测的结合方式。