Molecular design, synthesis, and structure-activity relationships leading to the potent and selective P56lck inhibitor BMS-243117

A series of structurally novel benzothiazole based small molecule inhibitors of p56(lck) were prepared to elucidate their structure-activity relationships (SARs), selectivity and cell activity in the T-cell proliferation assay. BMS-243117 (compound 2) is identified as a potent, and selective Lck inhibitor with good cellular activity (IC50 = 1.1 muM) against T-cell proliferation. (C) 2003 Elsevier Science Ltd. All rights reserved.