Thiophene-Anthranilamides as Highly Potent and Orally Available Factor Xa Inhibitors
摘要:
There remains a high unmet medical need for a safe oral therapy for thrombotic disorders. The serine protease factor Xa (fXa), with its central role in the coagulation cascade, is among the more promising targets for anticoagulant therapy and has been the subject of intensive drug discovery efforts. Investigation of a hit from high-throughput screening identified a series of thiophene-substituted anthranilamides as potent nonamidine fXa inhibitors. Lead optimization by incorporation of hydrophilic groups led to the discovery of compounds with picomolar inhibitory potency and micromolar in vitro anticoagulant activity. Based on their high potency, selectivity, oral pharmacokinetics, and efficacy in a rat venous stasis model of thrombosis, compounds ZK 814048 (10b), ZK 810388 (13a), and ZK 813039 (17m) were advanced into development.
Structure–Activity relationships of substituted benzothiophene-anthranilamide factor Xa inhibitors
作者:Yuo-Ling Chou、David D Davey、Keith A Eagen、Brian D Griedel、Rushad Karanjawala、Gary B Phillips、Karna L Sacchi、Kenneth J Shaw、Shung C Wu、Dao Lentz、Amy M Liang、Lan Trinh、Michael M Morrissey、Monica J Kochanny
DOI:10.1016/s0960-894x(02)00938-1
日期:2003.2
non-amidine factor Xa inhibitor with good selectivity against thrombin and trypsin. A series of modifications of the three aromatic groups of 1 was investigated. Substitution of chlorine or bromine for fluorine on the aniline ring led to the discovery of subnanomolar factor Xa inhibitors. Positions on the anthranilic acid ring that can accommodate further substitution were also identified.