Novel 1,5-benzothiazepine derivatives of the formula: ##STR1## wherein R.sup.1 is hydrogen or lower alkyl, R.sup.2 is hydrogen, lower alkanoyl or benzyl, R.sup.3 is hydrogen or lower alkyl and either one of R.sup.4 and R.sup.5 is hydrogen and the other is chlorine, or a pharmaceutically acceptable acid addition salt thereof are disclosed. Said derivative (I) and its salt have a potent platelet aggregation-inhibiting activity.
公开了一种通式为##STR1##的新型1,5-苯并
硫氮杂草衍
生物,其中R1是氢或低级烷基,R2是氢、低级烷酰基或苄基,R3是氢或低级烷基,R4和R5中任一为氢,另一为
氯,或其药学上可接受的酸加成盐。该衍
生物(I)及其盐具有强大的血小板聚集抑制活性。