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.
本发明公开了式子##STR1##中R.sup.1,R.sup.2,R.sup.3和R.sup.4的化合物,它们的互变异构体和盐,其中R.sup.1,R.sup.2,R.sup.3和R.sup.4的含义如下所述。上述化合物抑制血小板聚集,因此在预防血栓方面作为治疗剂非常有用。此外,由于具有强心活性且没有明显的心动过速,它们对于治疗和预防心脏衰竭和心力衰竭也非常有用。