Synthesis and biological evaluation of 3-substituted-benzofuran-2-carboxylic esters as a novel class of ischemic cell death inhibitors
作者:Jeehee Suh、Kyu Yang Yi、Yun-Suk Lee、Eunhee Kim、Eul Kgun Yum、Sung-eun Yoo
DOI:10.1016/j.bmcl.2010.09.102
日期:2010.11
A series of 3-substituted-benzofuran-2-carboxylic esters was synthesized and evaluated for biological activity as ischemic cell death inhibitors in H9c2 cells and rat primary cardiac myocytes under conditions of oxygen and glucose deprivation. The introduction of a sulfur atom at the three-position substituent of the benzofuran ring markedly improved ischemic cell death inhibitory potency. In particular, 3-[2-(4-nitro-phenylsulfanyl)-acetylamino]-benzofuran-2-carboxylic acid ester (10) (EC(50) = 0.532 mu M, cell death = 6.18%) and 4-chloro-3-[3-(pyridin-2-ylsulfanyl)-propionylamino]-benzofuran-2-carboxylic ester (18) (EC(50) = 0.557 mu M, cell death = 7.02%) were shown to be the most potent in this series of benzofuran analogs. (C) 2010 Elsevier Ltd. All rights reserved.