Compounds of the formula ##STR1## wherein L, M, R, T and X are set forth in the description, as well as hydrates or solvates thereof, which inhibit thrombin-induced platelet aggregation and clotting of fibrinogen in plasma, are described. The compounds of formula I are prepared by amidination or, depending on whether L is NH or O, by amide formation or esterification.
式中L、M、R、T和X在描述中阐述的化合物I,以及其
水合物或溶剂化物,可以抑制血浆中凝血酶诱导的血小板聚集和
纤维蛋白原的凝结。化合物I可以通过酰胺化或酯化反应来制备,具体取决于L是NH还是O。