2014 Volume 62 Issue 9 Pages 856-866
In this study, synthesis and docking studies of a series of new benzimidazole derivatives linked to substituted pyrimidines either through the methylenethio linkage or its bioisosteric methylene amino bridge were carried out. All the synthesized compounds were evaluated for their hepatitis C virus (HCV) RNA replication-inhibitory activity. Compounds 4d, 4f, and 4h were found to be more potent than VX-950 (IC50/90 of 4d=0.123/0.321, 4f=0.145/0.345, 4h=0.129/0.432, VX-950=0.20/0.45 µM, respectively) and 6d (IC50/90=0.116/0.452 µM) displayed activity very similar to that of the standard. Compounds 4d, 4f, 4h, and 6d were potent HCV RNA replication inhibitors and are good drug candidates for further investigations.