Discovery and SAR studies of a novel series of noncovalent cathepsin S inhibitors
作者:Darin J. Gustin、Clark A. Sehon、Jianmei Wei、Hui Cai、Steven P. Meduna、Haripada Khatuya、Siquan Sun、Yin Gu、Wen Jiang、Robin L. Thurmond、Lars Karlsson、James P. Edwards
DOI:10.1016/j.bmcl.2005.01.045
日期:2005.3
A novel series of competitive, reversible cathepsin S (Cats) inhibitors was discovered and optimized. The 4-(2-keto-1-benzimidazolinyl)-piperidin-1-yl moiety was found to be an effective replacement for the 4-arylpiperazin-1-yl group found in our earlier series of Cats inhibitors. This replacement imparted improved PK properties as well as decreased off-target activity. Optimization of the ketobenzimidazole moiety led to the discovery of the lead compound JNJ 10329670, which represents a novel class of selective, noncovalent, reversible, and orally bioavailable inhibitors of cathepsin S. (c) 2005 Elsevier Ltd. All rights reserved.