作者:Zoë A. Henley、Benjamin D. Bax、Laura M. Inglesby、Aurélie Champigny、Simon Gaines、Paul Faulder、Joelle Le、Daniel A. Thomas、Yoshiaki Washio、Ian R. Baldwin
DOI:10.1021/acsmedchemlett.7b00296
日期:2017.10.12
Selective inhibitors of phosphoinositide 3-kinase delta are of interest for the treatment of inflammatory diseases. Initial optimization of a 3-substituted indazole hit compound targeting the kinase PIM1 focused on improving selectivity over GSK3 beta through consideration of differences in the ATP binding pockets. Continued kinase cross-screening showed PI3K delta activity in a series of 4,6-disubstituted indazole compounds, and subsequent structure activity relationship exploration led to the discovery of an indole-containing lead compound as a potent PI3K delta inhibitor with selectivity over the other PI3K isoforms.