Lactam compounds of the formula ##STR1## in which: R is hydrogen, alkyl or cycloalkyl; R.sup.1 is hydrogen, alkyl, alkenyl or cycloalkyl; R.sup.2 is alkyl, alkenyl, cyano or a carbonyl substituted hydroxyl, alkyl, alkoxy, amino, alkylamino or hydrazino; or R.sup.1 and R.sup.2 together represent alkylidene cycloalkylidene; or R.sup.1, R.sup.2 and the adjacent carbon atom form a spirocyclic ring; n is 0 or 1; A is a --Co--NH--, --NH--CO--NH-- or --O--CO--NH--; X is a valency bond, alkylene or alkenylene; and R.sup.3 is optionally substituted phenyl, pyridyl, methylenedioxyphenyl or a five-membered heterocycle; or when X is a valency bond, R.sup.3 can also be an optionally substituted alkyl or alkino group, or cycloalkyl. The compounds are useful for the inhibition of erythrocyte and thrombocyte aggregation.
化合物的
化学式为##STR1## 其中:R为氢,烷基或环烷基;R.sup.1为氢,烷基,烯基或环烷基;R.sup.2为烷基,烯基,
氰基或取代羟基,烷基,烷氧基,
氨基,烷基
氨基或
肼基的羰基;或R.sup.1和R.sup.2一起表示烷基亚环烷基;或R.sup.1,R.sup.2和相邻碳原子形成螺环;n为0或1;A为--Co--NH--,--NH--CO--NH--或--O--CO--NH--;X为价键,烷基或烯基;R.sup.3为可选取代的苯基,
吡啶基,二氧化甲基苯基或五元杂环;或当X为价键时,R.sup.3也可以是可选取代的烷基或炔基,或环烷基。这些化合物可用于抑制红细胞和血小板聚集。