作者:Ian Stansfield、Caterina Ercolani、Angela Mackay、Immacolata Conte、Marco Pompei、Uwe Koch、Nadia Gennari、Claudio Giuliano、Michael Rowley、Frank Narjes
DOI:10.1016/j.bmcl.2008.12.068
日期:2009.2
We report the evolutionary path from an open-chain series to conformationally constrained tetracyclic indole inhibitors of HCV NS5B-polymerase, where the C2 aromatic is tethered to the indole nitrogen. SAR studies led to the discovery of zwitterionic compounds endowed with good intrinsic enzyme affinity and cell-based potency, as well as superior DMPK profiles to their acyclic counterparts, and ultimately to the identification of a pre-clinical candidate with an excellent predicted human pharmacokinetic profile. (c) 2009 Elsevier Ltd. All rights reserved.