Development of a highly selective EP2-receptor agonist. Part 2: identification of 16-Hydroxy-17,17-trimethylene 9β-chloro PGF derivatives
作者:Kousuke Tani、Atsushi Naganawa、Akiharu Ishida、Hiromu Egashira、Kenji Sagawa、Hiroyuki Harada、Mikio Ogawa、Takayuki Maruyama、Shuichi Ohuchida、Hisao Nakai、Kigen Kondo、Masaaki Toda
DOI:10.1016/s0968-0896(01)00370-4
日期:2002.4
Further chemical modification of 1a and 2 was undertaken to identify a more chemically stable selective EP2-receptor agonist for development as a clinical candidate. 9beta-Chloro PG analogues 4a-e and 5a, c-e were found to be potent and selective EP2-receptor agonists. Among them, the compound 4aLy, which is a chemically stabilized lysine salt of 4a, exhibited an excellent profile both in biological activities and physicochemical properties. The agonist 4aLy was found to suppress uterine motility in anesthetized pregnant rats, while PGE(2) stimulated uterine motility. Structure-activity relationships (SARs) are discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.