Synthesis and Metabolic Studies of Host-Directed Inhibitors for Antiviral Therapy
作者:Terry W. Moore、Kasinath Sana、Dan Yan、Stefanie A. Krumm、Pahk Thepchatri、James P. Snyder、José Marengo、Richard F. Arrendale、Andrew J. Prussia、Michael G. Natchus、Dennis C. Liotta、Richard K. Plemper、Aiming Sun
DOI:10.1021/ml400166b
日期:2013.8.8
Targeting host cell factors required for virus replication provides an alternative to targeting pathogen components and represents a promising approach to develop broad-spectrum antiviral therapeutics. High-throughput screening (HTS) identified two classes of inhibitors (2 and 3) with broad-spectrum antiviral activity against ortho- and paramyxoviruses including influenza A virus (IAV), measles virus (MeV), respiratory syncytial virus (RSV), and human parainfluenza virus type 3 (HPIV3). Hit-to-lead optimization delivered inhibitor 28a, with EC50 values of 0.88 and 0.81 mu M against IAV strain WSN and MeV strain Edmonston, respectively. It was also found that compound 28a delivers good stability in human liver S9 fractions with a half-life of 165 min. These data establish 28a as a promising lead for antiviral therapy through a host-directed mechanism.