5-Chlorothiophene-2-carboxylic Acid [(<i>S</i>)-2-[2-Methyl-3-(2-oxopyrrolidin-1-yl)benzenesulfonylamino]-3-(4-methylpiperazin-1-yl)-3-oxopropyl]amide (SAR107375), a Selective and Potent Orally Active Dual Thrombin and Factor Xa Inhibitor
作者:Jerome Meneyrol、Markus Follmann、Gilbert Lassalle、Volkmar Wehner、Guillaume Barre、Tristan Rousseaux、Jean-Michel Altenburger、Frederic Petit、Zsolt Bocskei、Herman Schreuder、Nathalie Alet、Jean-Pascal Herault、Laurence Millet、Frederique Dol、Peter Florian、Paul Schaeffer、Freddy Sadoun、Sylvie Klieber、Christophe Briot、Françoise Bono、Jean-Marc Herbert
DOI:10.1021/jm4005835
日期:2013.12.12
Compound 15 (SAR107375), a novel potent dual thrombin and factor Xa inhibitor resulted from a rational optimization process. Starting from compound 14, with low factor Xa and modest anti-thrombin inhibitory activities (IC50's of 3.5 and 0.39 mu M, respectively), both activities were considerably improved, notably through the incorporation of a neutral chlorothiophene PI fragment and tuning of P2 and P3-P4 fragments. Final optimization of metabolic stability with microsomes led to the identification of 15, which displays strong activity in vitro vs factor Xa and thrombin (with K-i's of 1 and 8 nM, respectively). In addition 15 presents good selectivity versus related serine proteases (roughly 300-fold), including trypsin (1000-fold), and is very active (0.39 mu M) in the thrombin generation time (TGT) coagulation assay in human platelet rich plasma (PRP). Potent in vivo activity in a rat model of venous thrombosis following iv and, more importantly, po administration was also observed (ED50 of 0.07 and 2.8 mg/kg, respectively). Bleeding liability was reduced in the rat wire coil model, more relevant to arterial thrombosis, with 15 (blood loss increase of 2-fold relative to the ED80 value) compared to rivaroxaban 2 and dabigatran etexilate 1a.