申请人:Hoffmann-La Roche Inc.
公开号:US04256748A1
公开(公告)日:1981-03-17
Compounds of the formula ##STR1## wherein R.sup.1,R.sup.2,R.sup.3 and R.sup.4 are as hereinafter described, tautomers and salts thereof, are disclosed. The foregoing compounds inhibit the aggregation of blood platelets which renders them useful as therapeutic agents in the prophylaxis of thromboses. Furthermore, they are useful for the treatment and prophylaxis of cardiac insufficiency and cardiac failure, due to their inotropic activity without substantial tachycardia.
公式为##STR1##的化合物,其中R.sup.1,R.sup.2,R.sup.3和R.sup.4如下所述,其互变异构体和盐被披露。上述化合物抑制血小板聚集,使它们在预防血栓形成方面作为治疗剂非常有用。此外,由于它们具有正性肌力活性而没有明显的心动过速,它们对治疗和预防心脏功能不全和心力衰竭也非常有用。