Design, synthesis and biological activity of YM-60828 derivatives: potent and orally-Bioavailable factor Xa inhibitors based on naphthoanilide and naphthalensulfonanilide templates
摘要:
Factor Xa (FXa) is a serine protease which plays a pivotal role in the coagulation cascade. The inhibition of FXa has received great interest as a potential target for the development of new antithrombotic drug. Herein we describe a series of novel 7-arnidino-2-naphthoanilide and 7-amidino-2-naphthalensulfonanilide derivatives which are potent FXa inhibitors. These scaffolds are rigid and are allowed to adopt an L-shape conformation which was estimated as the active conformation based on a docking study of YM-60828 with FXa. Optimization of the side chain at the central aniline nitrogen of 7-amidino-2-naphthoanilide has led to several potent and orally active FXa inhibitors. 5h (YM-169964), the best compound of these series, showed potent FXa inhibitory activity (IC50 = 3.9 nM) and effectively prolonged prothrombin time by 9.6-fold ex vivo Lit an oral dose of 3 mg/kg in squirrel monkeys. (C) 2002 Elsevier Science Ltd. All rights reserved.
Design, synthesis and biological activity of YM-60828 derivatives: potent and orally-Bioavailable factor Xa inhibitors based on naphthoanilide and naphthalensulfonanilide templates
摘要:
Factor Xa (FXa) is a serine protease which plays a pivotal role in the coagulation cascade. The inhibition of FXa has received great interest as a potential target for the development of new antithrombotic drug. Herein we describe a series of novel 7-arnidino-2-naphthoanilide and 7-amidino-2-naphthalensulfonanilide derivatives which are potent FXa inhibitors. These scaffolds are rigid and are allowed to adopt an L-shape conformation which was estimated as the active conformation based on a docking study of YM-60828 with FXa. Optimization of the side chain at the central aniline nitrogen of 7-amidino-2-naphthoanilide has led to several potent and orally active FXa inhibitors. 5h (YM-169964), the best compound of these series, showed potent FXa inhibitory activity (IC50 = 3.9 nM) and effectively prolonged prothrombin time by 9.6-fold ex vivo Lit an oral dose of 3 mg/kg in squirrel monkeys. (C) 2002 Elsevier Science Ltd. All rights reserved.