Novel HCVNS5B polymerase inhibitors derived from 4-(1′,1′-dioxo-1′,4′-dihydro-1′λ6-benzo[1′,2′,4′]thiadiazin-3′-yl)-5-hydroxy-2H-pyridazin-3-ones.: Part 5:: Exploration of pyridazinones containing 6-amino-substituents

被引:29
作者
Dragovich, Peter S. [1 ]
Blazel, Julie K. [1 ]
Ellis, David A. [1 ]
Han, Qing [1 ]
Kamran, Ruhi [1 ]
Kissinger, Charles R. [1 ]
LeBrun, Laurie A. [1 ]
Li, Lian-Sheng [1 ]
Murphy, Douglas E. [1 ]
Noble, Michael [1 ]
Patel, Rupal A. [1 ]
Ruebsam, Frank [1 ]
Sergeeva, Maria V. [1 ]
Shah, Amit M. [1 ]
Showalter, Richard E. [1 ]
Tran, Chinh V. [1 ]
Tsan, Mei [1 ]
Webber, Stephen E. [1 ]
Kirkovsky, Leo [1 ]
Zhou, Yuefen [1 ]
机构
[1] Anadys Pharmaceut Inc, San Diego, CA 92121 USA
关键词
pyridazinones; 5-hydroxy-3(2H)-pyridazinone derivatives; hepatitis C virus (HCV); RNA-dependent RNA polymerase (RdRp); non-nucleoside NS5B inhibitors;
D O I
10.1016/j.bmcl.2008.08.094
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
The synthesis of 4-(1',1'-dioxo-1',4'-dihydro-1'lambda(6)-benzo[1',2',4']thiadiazin-3'-yl)-5-hydroxy-2H-pyridazin-3-ones bearing 6-amino substituents as potent inhibitors of the HCV RNA-dependent RNA polymerase (NS5B) is described. Several of these agents also display potent antiviral activity in cell culture experiments (EC50 < 0.10 mu M). In vitro DMPK data (microsome t(1/2), Caco-2 P-app) for many of the compounds are also disclosed, and a crystal structure of a representative inhibitor complexed with the NS5B protein is discussed. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:5635 / 5639
页数:5
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