The discovery of thienopyridine analogues as potent IκB kinase β inhibitors. Part II
作者:Jiang-Ping Wu、Roman Fleck、Janice Brickwood、Alison Capolino、Katrina Catron、Zhidong Chen、Charles Cywin、Jonathan Emeigh、Melissa Foerst、John Ginn、Matt Hrapchak、Eugene Hickey、Ming-Hong Hao、Mohammed Kashem、Jun Li、Weimin Liu、Tina Morwick、Richard Nelson、Daniel Marshall、Leslie Martin、Peter Nemoto、Ian Potocki、Michel Liuzzi、Gregory W. Peet、Erika Scouten、David Stefany、Michael Turner、Steve Weldon、Clare Zimmitti、Denise Spero、Terence A. Kelly
DOI:10.1016/j.bmcl.2009.08.054
日期:2009.10
An SAR study that identified a series of thienopyridine-based potent I kappa B Kinase beta (IKK beta) inhibitors is described. With focuses on the structural optimization at C(4) and C(6) of structure 1 (Fig. 1), the study reveals that small alkyl and certain aromatic groups are preferred at C(4), whereas polar groups with proper orientation at C(6) efficiently enhance compound potency. The most potent analogues inhibit IKKb with IC(50)s as low as 40 nM, suppress LPS-induced TNF-alpha production in vitro and in vivo, display good kinase selectivity profiles, and are active in a HeLa cell NF-kappa B reporter gene assay, demonstrating that they directly interfere with the NF-kappa B signaling pathway. (C) 2009 Elsevier Ltd. All rights reserved.