Benzimidazole derivatives bearing substituted biphenyls as hepatitis C virus NS5B RNA-dependent RNA polymerase inhibitors: Structure-activity relationship studies and identification of a potent and highly selective inhibitor JTK-109

被引:156
作者
Hirashima, Shintaro [1 ]
Suzuki, Takayoshi [1 ]
Ishida, Tomio [1 ]
Noji, Satoru [1 ]
Yata, Shinji [1 ]
Ando, Izuru [1 ]
Komatsu, Masakazu [1 ]
Ikeda, Satoru [1 ]
Hashimoto, Hiromasa [1 ]
机构
[1] Japan Tobacco Inc, Cent Pharmaceut Res Inst, Takatsuki, Osaka 5691125, Japan
关键词
D O I
10.1021/jm060269e
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
Following the discovery of a new series of benzimidazole derivatives bearing a diarylmethyl group as inhibitors of hepatitis C virus NS5B RNA-dependent RNA polymerase (HCV NS5B RdRp), 1,2 we extended the structure-activity relationship (SAR) study to analogues bearing a substituted biphenyl group and succeeded in a significant advancement of activity. Starting from compound 1, optimization of the A, B, and C rings afforded potent inhibitors with low nanomolar potency against genotype 1b NS5B. The compounds, which have a substituent with a carbonyl function at the 4-position of the B-ring, efficiently blocked subgenomic viral RNA replication in the replicon cell assay at low submicromolar concentrations. Among the new compounds, compound 10n (JTK-109) exhibited favorable pharmacokinetic profiles, high selectivity for NS5B, and good safety profiles, suggesting the potential for a clinical candidate in the treatment of hepatitis C.
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收藏
页码:4721 / 4736
页数:16
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