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Overview
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Background
Rivaroxaban, 5-chloro-N-[[(5S)-2-oxo-3-[4-(3-oxomorpholin-4-yl)phenyl]-1,3-oxazolidin-5-yl]methyl]thiophene-2-carboxamide, is a potent small-molecule inhibitor of factor Xa which is a coagulation factor at a critical juncture in the blood coagulation pathway resulting in the generation of thrombin and the formation of clot. Rivaroxaban binds to the Tyr288 in S1 pocket of factor Xa through the interaction of Tyr288 and the chlorine substituent of the chlorothiophene moiety. The inhibition is reversible (koff = 5x10-3s-1), rapid (kon = 1.7x107 mol/L-1 s-1), and in a concentration-dependent manner (Ki = 0.4 nmol/L). Rivaroxaban is currently being studied for the treatment of VTE, prevention of cardiovascular events in patients with acute coronary syndrome, prevention of stroke in patients with atrial fibrillation.
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- Properties
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Overview