Compounds of formula I ##STR1## and metabolically labile esters and amides thereof, and pharmaceutically acceptable salts thereof, in which R.sup.13, M.sup.2, X.sup.1, Z.sup.1, Z.sup.1a, X.sup.2 and A.sup.1 have the meanings given in the specification. The compounds are useful as inhibitors of the binding of fibrinogen to glycoprotein IIb/IIIa. Intermediates are also disclosed.
公式I的化合物及其代谢易降解的酯和酰胺,以及其药学上可接受的盐,其中R.sup.13,M.sup.2,X.sup.1,Z.sup.1,Z.sup.1a,X.sup.2和A.sup.1具有规范中给定的含义。这些化合物可用作抑制
纤维蛋白原与糖蛋白IIb/IIIa结合的
抑制剂。还披露了中间体。