Lead optimization of a dihydropyrrolopyrimidine inhibitor against phosphoinositide 3-kinase (PI3K) to improve the phenol glucuronic acid conjugation
作者:Hatsuo Kawada、Hirosato Ebiike、Masao Tsukazaki、Mitsuaki Nakamura、Kenji Morikami、Kiyoshi Yoshinari、Miyuki Yoshida、Kotaro Ogawa、Nobuo Shimma、Takuo Tsukuda、Jun Ohwada
DOI:10.1016/j.bmcl.2012.11.112
日期:2013.2
Our lead compound for a phosphoinositide 3-kinase (PI3K) inhibitor (1) was metabolically unstable because of rapid glucuronidation of the phenol moiety. Based on structure-activity relationship (SAR) information and a FlexSIS docking simulation score, aminopyrimidine was identified as a bioisostere of phenol. An X-ray structure study revealed a hydrogen bonding pattern of aminopyrimidine derivatives. Finally, aminopyrimidine derivatives 33 showed strong tumor growth inhibition against a KPL-4 breast cancer xenograft model in vivo. (c) 2012 Elsevier Ltd. All rights reserved.