Thiazolyl N-benzyl-substituted acetamide derivatives: Synthesis, Src kinase inhibitory and anticancer activities
作者:Asal Fallah-Tafti、Alireza Foroumadi、Rakesh Tiwari、Amir Nasrolahi Shirazi、David G. Hangauer、Yahao Bu、Tahmineh Akbarzadeh、Keykavous Parang、Abbas Shafiee
DOI:10.1016/j.ejmech.2011.07.050
日期:2011.10
KX2-391 (KX-01/Kinex Pharmaceuticals), N-benzyl-2-(5-(4-(2-morpholinoethoxy)phenyl)pyridin-2-yl) acetamide, is a highly selective Src substrate binding site inhibitor. To understand better the role of pyridine ring and N-benzylsubstitution in KX2-391 and establish the structure activity relationship, a number of N-benzyl substituted (((2-morpholinoethoxy)phenyl)thiazol-4-yl)acetamide derivatives containing thiazole instead of pyridine were synthesized and evaluated for Src kinase inhibitory activities. The unsubstituted N-benzyl derivative (8a) showed the inhibition of c-Src kinase with GI(50) values of 1.34 mu M and 2.30 mu M in NIH3T3/c-Src527F and SYF/c-Src527F cells, respectively. All the synthesized compounds were evaluated for inhibition of cell proliferation of human colon carcinoma (HT-29), breast carcinoma (BT-20), and leukemia (CCRF-CEM) cells. 4-Fluorobenzylthiazolyl derivative 8b exhibited 64 -71% inhibition in the cell proliferation of BT-20 and CCRF cells at concentration of 50 mu M. (C) 2011 Elsevier Masson SAS. All rights reserved.