Fibrinogen receptor antagonists having the structure X--Y--Z--A--B and pharmaceutically acceptable salts, wherein X is a 5, 6 or 7 membered aromatic or nonaromatic ring, and Y is a 5 or 6 membered aromatic ring, e.g., ##STR1##
具有结构X-Y-Z-A-B和药学上可接受的盐的
纤维蛋白原受体拮抗剂,其中X是5、6或7成员芳香或非芳香环,而Y是5或6成员芳香环,例如##STR1##