Newspirocompoundsoftheformula:
wherein n is an integer of 1 to 4, and X is halogen, lower alkyl, nitro, amino which may be substituted, hydroxyl which may be substituted, acyl, carboxyl, lower alkoxycarbonyl, carbamoyl which may be substituted, sulfamoyl which may be substituted, lower alkylthio or lower alkylsulfonyl, or two of X at the 5- and 6-positions together form -CH=CH-CH=CH-, exhibit inhibitory activity to thrombocyte aggregation and are useful for the prophylaxis or treatment of cardiovascular disturbance such as thrombosis.
式中 n 为 1 至 4 的整数,X 为卤素、低级烷基、硝基、可被取代的
氨基、可被取代的羟基、酰基、羧基、低级烷
氧基羰基、可被取代的
氨基甲酰基、可被取代的
氨基磺酰基、低级烷
硫基或低级烷基磺酰基,或位于 5 位和 6 位的两个 X 共同形成-CH=CH-CH=CH-,具有抑制血小板聚集的活性,可用于预防或治疗血栓等心血管疾病。