Discovery of azabenzimidazole derivatives as potent, selective inhibitors of TBK1/IKKε kinases
作者:Tao Wang、Michael A. Block、Scott Cowen、Audrey M. Davies、Erik Devereaux、Lakshmaiah Gingipalli、Jeffrey Johannes、Nicholas A. Larsen、Qibin Su、Julie A. Tucker、David Whitston、Jiaquan Wu、Hai-Jun Zhang、Michael Zinda、Claudio Chuaqui
DOI:10.1016/j.bmcl.2012.01.018
日期:2012.3
The design, synthesis and biological evaluation of a series of azabenzimidazole derivatives as TBK1/IKK epsilon kinase inhibitors are described. Starting from a lead compound 1a, iterative design and SAR exploitation of the scaffold led to analogues with nM enzyme potencies against TBK1/IKK epsilon. These compounds also exhibited excellent cellular activity against TBK1. Further structure-based design to improve selectivity over CDK2 and Aurora B resulted in compounds such as 5b-e. These probe compounds will facilitate study of the complex cancer biology of TBK1 and IKK epsilon. (C) 2012 Elsevier Ltd. All rights reserved.