Inhibitors of the <i>C</i><sub>2</sub>-Symmetric HIV-1 Protease: Nonsymmetric Binding of a Symmetric Cyclic Sulfamide with Ketoxime Groups in the P2/P2‘ Side Chains
作者:Johan Hultén、Hans O. Andersson、Wesley Schaal、Helena U. Danielson、Björn Classon、Ingemar Kvarnström、Anders Karlén、Torsten Unge、Bertil Samuelsson、Anders Hallberg
DOI:10.1021/jm991054q
日期:1999.10.1
Symmetric cyclic sulfamides, substituted in the P2/P2' position with functional groups foreseen to bind preferentially to the S2/S2' subsites of HIV-1 protease, have been prepared. Despite efforts to promote a symmetric binding, the sulfamides seemed prone to bind nonsymmetrically, as deduced from X-ray crystal structure analysis of one of the most potent inhibitors, possessing ketoxime groups in the
已经制备了在环状的P2 / P2'位置被官能团取代的对称环状环硫酰胺,该官能团被认为优先与HIV-1蛋白酶的S2 / S2'亚位结合。尽管已努力促进对称结合,但从最有效的抑制剂之一的X射线晶体结构分析推论,磺酰胺似乎倾向于不对称结合,在P2 / P2'侧链上具有酮肟基。从头算计算表明,环状磺酰胺支架的非对称构象比相应的对称环状脲样构象具有更低的能量。