Summary
A series of new specific inhibitors of thrombin, cyclic amides of Nα-arylsulfonyl-amidinophenylalanine,
was studied for anticoagulant action in vitro and in vivo. The inhibitors showed strong
anticoagulant effects in vitro. The time course of the anticoagulant effect of the
inhibitors in rabbits and rats was monitored using plasma thrombin time determinations.
In rats, the inhibitors prevented the formation of experimental venous thrombi and
of thrombin-induced microthrombosis. The new derivatives of benz-amidine presented
may be useful as immediately acting anticoagulants.
Keywords
Synthetic thrombin inhibitors - Anticoagulants - Antithrombotics