Synthesis and biological evaluation of benzamides and benzamidines: structural requirement of a pyrimidine ring for inhibition of EGFR tyrosine kinase
作者:Toru Asano、Tomohiro Yoshikawa、Hiroyuki Nakamura、Yoshimasa Uehara、Yoshinori Yamamoto
DOI:10.1016/j.bmcl.2004.02.001
日期:2004.5
The benzamides 1 and the benzamidines 2-3 were synthesized as the mimics of 4-anilinoquinazolines, which possess inhibition of epidermal growth factor receptor (EGER) tyrosine kinase, and tested for cytotoxicity toward A431 and inhibitory activity toward autophosphorylation by the enzyme assay. High cell growth inhibition was observed in a series of the cyclic benzamides 3: the IC50 values are 0.09-0.32 mM. The benzamidines 3a and 3b exhibited high inhibition of EGER tyrosine kinase at a 1.0 muM concentration, although the benzamides 1 and the benzamidines 2 did not show significant kinase inhibition at a 10 muM concentration. (C) 2004 Elsevier Ltd. All rights reserved.