Cyclic amide bioisosterism: Strategic application to the design and synthesis of HCV NS5B polymerase inhibitors
作者:Hanbiao Yang、Robert T. Hendricks、Nidhi Arora、Dov Nitzan、Calvin Yee、Matthew C. Lucas、Yanli Yang、Amy Fung、Sonal Rajyaguru、Seth F. Harris、Vincent J.P. Leveque、Julie Q. Hang、Sophie Le Pogam、Deborah Reuter、Gisele A. Tavares
DOI:10.1016/j.bmcl.2010.06.008
日期:2010.8
Conformational modeling has been successfully applied to the design of cyclic bioisosteres used to replace a conformationally rigid amide bond in a series of thiophene carboxylate inhibitors of HCV NS5B polymerase. Select compounds were equipotent with the original amide series. Single-point mutant binding studies, in combination with inhibition structure-activity relationships, suggest this new series interacts at the Thumb-II domain of NS5B. Inhibitor binding at the Thumb-II site was ultimately confirmed by solving a crystal structure of 8b complexed with NS5B. (C) 2010 Elsevier Ltd. All rights reserved.