Stereoselective synthesis and biological evaluation of 3,4-diaminocyclohexanecarboxylic acid derivatives as factor Xa inhibitors
作者:Tsutomu Nagata、Masatoshi Nagamochi、Shozo Kobayashi、Satoshi Komoriya、Toshiharu Yoshino、Hideyuki Kanno
DOI:10.1016/j.bmcl.2008.07.031
日期:2008.8
There have been few reports on synthetic methods for cis-1,2-diaminocyclohexane bearing a third ring substituent. Starting from 3-cyclohexenecarboxylic acid, we developed efficient methods for synthesizing the 3,4-diaminocyclohexanecarboxylic acid derivatives 2-5. We also evaluated their anti-Xa and anticoagulant activities. Among the compounds, acid 2a and amide 2b exhibited the most potent in vitro anti-fXa activity, indicating that the position and stereochemistry of a polar functional group on the cyclohexane ring greatly affected the in vitro anti-fXa activity. (C) 2008 Elsevier Ltd. All rights reserved.