The invention relates to heterocyclic derivatives of formula (I) and (Ia), or pharmaceutically-acceptable salts thereof, which possess antithrombotic and anticoagulant properties and are accordingly useful in methods of treatment of humans or animals. The invention also relates to processes for the preparation of the heterocyclic derivatives, to pharmaceutical compositions containing them and to their use in the manufacture of medicaments for use in the production of an antithrombotic or anticoagulant effect.
本发明涉及式(I)和(Ia)的杂环衍
生物,或其药学上可接受的盐,具有抗血栓和抗凝作用,因此在人类或动物的治疗方法中有用。本发明还涉及制备该杂环衍
生物的方法,含有它们的制药组合物以及它们在制造用于产生抗血栓或抗凝效果的药物中的使用。