Pyrrolidine-5,5-trans-lactams.: 1.: Synthesis and incorporation into inhibitors of hepatitis C virus NS3/4A protease

被引:24
作者
Andrews, DM [1 ]
Carey, SJ [1 ]
Chaignot, H [1 ]
Coomber, BA [1 ]
Gray, NM [1 ]
Hind, SL [1 ]
Jones, PS [1 ]
Mills, G [1 ]
Robinson, JE [1 ]
Slater, MJ [1 ]
机构
[1] GlaxoSmithKline Med Res Ctr, Stevenage SG1 2NY, Herts, England
关键词
D O I
10.1021/ol027013x
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
[GRAPHICS] In this, the first of two letters, we outline the use of the pyrrolidine-5,5-trans-lactam template to design small, neutral, mechanism-based inhibitors of hepatitis C NS3/4A protease. The hitherto unreported reaction of the acyl iminium ion precursor 4 with dialkyl-substituted silyl ketene acetals (e.g., 8b) is described. Compound 12b, with a spirocyclobutyl P1 substituent and a cyclopropylacyl substituent on the lactam nitrogen, has a k(obs)/l of 400 M-1 s(-1) and demonstrates activity in a replicon cell-based surrogate HCV assay.
引用
收藏
页码:4475 / 4478
页数:4
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