3-(1,1-Dioxo-2<i>H</i>-(1,2,4)-benzothiadiazin-3-yl)-4-hydroxy-2(1<i>H</i>)-quinolinones, Potent Inhibitors of Hepatitis C Virus RNA-Dependent RNA Polymerase
作者:Rosanna Tedesco、Antony N. Shaw、Ramesh Bambal、Deping Chai、Nestor O. Concha、Michael G. Darcy、Dashyant Dhanak、Duke M. Fitch、Adam Gates、Warren G. Gerhardt、Dina L. Halegoua、Chao Han、Glenn A. Hofmann、Victor K. Johnston、Arun C. Kaura、Nannan Liu、Richard M. Keenan、Juili Lin-Goerke、Robert T. Sarisky、Kenneth J. Wiggall、Michael N. Zimmerman、Kevin J. Duffy
DOI:10.1021/jm050855s
日期:2006.2.1
Recently, we disclosed a new class of HCV polymerase inhibitors discovered through high-throughput screening (HTS) of the GlaxoSmithKline proprietary compound collection. This interesting class of 3-(1,1-dioxo-2H-1,2,4-benzothiadiazin-3-yl)-4-hydroxy-2(1H)-quinolinones potently inhibits HCV polymerase enzymatic activity and inhibits the ability of the subgenomic HCV replicon to replicate in Huh-7 cells. This report will focus on the structure-activity relationships (SAR) of substituents on the quinolinone ring, culminating in the discovery of 1-(2-cyclopropylethyl)-3-(1,1-dioxo-2H-1,2,4-benzothiadiazin-3-yl)-6-fluoro-4-hydroxy-2(1H)-quinolinone (130), an inhibitor with excellent potency in biochemical and cellular assays possessing attractive molecular properties for advancement as a clinical candidate. The potential for development and safety assessment profile of compound 130 will also be discussed.