Structural optimization of cyclic sulfonamide based novel HIV-1 protease inhibitors to picomolar affinities guided by X-ray crystallographic analysis
作者:Ashit K. Ganguly、Sesha S. Alluri、Chih-Hung Wang、Alyssa Antropow、Alex White、Danielle Caroccia、Dipshikha Biswas、Eunhee Kang、Li-Kang Zhang、Steven S. Carroll、Christine Burlein、John Fay、Peter Orth、Corey Strickland
DOI:10.1016/j.tet.2014.03.038
日期:2014.5
disclose the design of novel inhibitors 47 and 48 based on the X-ray structure of compound 5 bound to the HIV-1 protease, their synthesis and activity against HIV-1 protease. By making changes at the C4 position and the carbamate linkage the above compounds 47 and 48 were found to be approximately one hundred fold more active compared to 5 and their Ki values are in the picomolar range. An unusual observation
最近从我们的小组中公开了基于新型环状磺酰胺药效团结构的化合物5的合成和HIV-1蛋白酶抑制活性。当与HIV-1蛋白酶结合时,X射线晶体结构5定义了其结合模式。强调了在C4–Me(S构型)处取代的几何形状的重要性。在本文中,我们希望根据与HIV-1蛋白酶结合的化合物5的X射线结构,它们的合成和对HIV-1蛋白酶的活性,公开新型抑制剂47和48的设计。通过在C4位和氨基甲酸酯键上进行改变,上述化合物47和发现48的活性是5的一百倍,它们的K i值在皮摩尔范围内。关于活性和几何形状的异常观察是使用化合物51和52进行的。X射线结果表明48和52与相同的结合袋结合,同时环磺酰胺环的构型同时发生变化。