Design, synthesis and in vitro anti-proliferative activity of 4,6-quinazolinediamines as potent EGFR-TK inhibitors
作者:Samar Mowafy、Nahla A. Farag、Khaled A.M. Abouzid
DOI:10.1016/j.ejmech.2012.10.017
日期:2013.3
4-Anilino-6-substituted-quinazolines were designed, synthesized and evaluated for EGFR-TK and tumor growth inhibitory activities. The target compounds were designed with enamine ester or urea moieties appended at the C-6 of quinazoline as additional hydrogen bond acceptor functions. Most of the synthesized compounds displayed potent EGFR-TK inhibitory activity at 10 mu M and the 6-ureido-anilinoquinazoline derivative 7a showed IC50 value of 0.061 mu M. Moreover, six compounds were tested by National Cancer Institute (NCI), USA for their anti-proliferative activity at 10 mu M in full NCI 60 cell panel. Compound 7a was further assayed for five dose molar ranges in full NCI 60 cell panel and exhibited remarkable growth inhibitory activity pattern against Non-Small Cell Lung Cancer EKVX (GI(50) = 037 mu M), NCI-H322M (GI(50) = 0.36 mu M), Renal Cancer A498 (GI(50) = 0.46 mu M), TK-10 (GI(50) = 0.99 mu M) and Breast Cancer MDA-MB-468 (GI(50) = 1.096 mu M) which are of high EGFR expression. Docking study was performed for the active compounds into ATP binding site of EGFR-TK which showed similar binding mode to gefitinib and additional binding with Cys-773 at the gatekeeper of EGFR-TK enzyme. (C) 2012 Elsevier Masson SAS. All rights reserved.