Structure–activity relationships of heteroaromatic esters as human rhinovirus 3C protease inhibitors
作者:Isak Im、Eui Seung Lee、Soo Jeong Choi、Ju-Yeon Lee、Yong-Chul Kim
DOI:10.1016/j.bmcl.2009.04.114
日期:2009.7
Human rhinovirus 3C protease (HRV 3C(pro)) is known to be a promising target for development of therapeutic agents against the common cold because of the importance of the protease in viral replication as well as its expression in a large number of serotypes. To explore non-peptidic inhibitors of HRV 3C(pro), a series of novel heteroaromatic esters was synthesized and evaluated for inhibitory activity against HRV 3C(pro), to determine the structure-activity relationships. The most potent inhibitor, 7, with a 5-bromopyridinyl group, had an IC50 value of 80 nM. In addition, the binding mode of a novel analog, 19, with the 4-hydroxyquinolinone moiety, was explored by molecular docking, suggesting a new interaction in the S1 pocket. (C) 2009 Elsevier Ltd. All rights reserved.