Design and optimization of aniline-substituted tetrahydroquinoline C5a receptor antagonists
作者:Yong Gong、J. Kent Barbay、Mieke Buntinx、Jian Li、Jean Van Wauwe、Concha Claes、Guy Van Lommen、Pamela J. Hornby、Wei He
DOI:10.1016/j.bmcl.2008.06.059
日期:2008.7
A series of aniline-substituted tetrahydroquinoline C5a receptor antagonists were discovered. A functionality requirement of ortho substitution on the aniline was revealed. Secondary anilines, in general, outperformed tertiary analogs in inhibition of C5a-induced calcium mobilization. Further enhancement of activity was realized in the presence of an ortho hydroxyalkyl side chain. The functional IC(50) of selected analogs was optimized to the single-digit nanomolar level. (C) 2008 Elsevier Ltd. All rights reserved.