Design, synthesis and SAR of novel ethylenediamine and phenylenediamine derivatives as factor Xa inhibitors
作者:Kenji Yoshikawa、Toshiharu Yoshino、Yoshihiro Yokomizo、Kouichi Uoto、Hiroyuki Naito、Katsuhiro Kawakami、Akiyoshi Mochizuki、Tsutomu Nagata、Makoto Suzuki、Hideyuki Kanno、Makoto Takemura、Toshiharu Ohta
DOI:10.1016/j.bmcl.2011.01.132
日期:2011.4
We previously reported on a series of cyclohexanediamine derivatives as highly potent factor Xa inhibitors. Herein, we describe the modification of the spacer moiety to discover an alternative scaffold. Ethylenediamine derivatives possessing a substituent at the C1 position in S configuration and phenylenediamine derivatives possessing a substituent at the C5 position demonstrated moderate to strong anti-fXa activity. Further SAR studies led to the identification of compound 30h which showed both good in vitro activity (fXa IC50 = 2.2 nM, PTCT2 = 3.9 mu M) and in vivo antithrombotic efficacy. (C) 2011 Elsevier Ltd. All rights reserved.