Discovery of N-[(1R,2S,5S)-2-{[(5-chloroindol-2-yl)carbonyl]amino}-5-(dimethylcarbamoyl)cyclohexyl]-5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine-2-carboxamide hydrochloride: A novel, potent and orally active direct inhibitor of factor Xa
作者:Tsutomu Nagata、Toshiharu Yoshino、Noriyasu Haginoya、Kenji Yoshikawa、Masatoshi Nagamochi、Syozo Kobayashi、Satoshi Komoriya、Aki Yokomizo、Ryo Muto、Mitsuhiro Yamaguchi、Ken Osanai、Makoto Suzuki、Hideyuki Kanno
DOI:10.1016/j.bmc.2008.12.037
日期:2009.2
In the early 1990's, we reported on the low-molecular selective fXa inhibitor DX-9065a having two amidino groups. However, it had poor oral bioavailability due to its strong basic amidino groups. To obtain fXa inhibitors with improved oral bioavailability, we investigated various non-amidino fXa inhibitors and finally discovered cis-1,2-diaminocyclohexane derivative 4c to have potent fXa inhibition, promising anticoagulant activity, and good oral bioavailability, compared with amidino compound DX-9065a. In addition, we will discuss the influence of the third substituent on the cyclohexane ring on anti-fXa activity, anticoagulant activity, PK profile, and lipophilicity. (c) 2008 Elsevier Ltd. All rights reserved.