Novel lipid derivatives of the formula
[wherein R1 is alkyl or alkylcarbamoyl; R2 is hydrogen, hydroxy which may be substituted, amino which may be substituted or cyclic amino; R3 is chemical binding or alkylene which may be substituted; R4 is hydrogen, alkyl or aralkyl; X and Y are independently 0, S or an imino group which may be substituted, and when Y is an imino group, Y, together with the imino group represented by X or R4, may form a ring; and Z is imino or a nitrogen-containing heterocyclic ring which may be substituted] and salts thereof have inhibiting activity on platelet activating factor and are useful as a preventive or therapeutic agent for a variety of circulatory diseases and allergic disorders and also as an antineoplastic agent.
式[其中 R1 是烷基或烷基
氨基甲酰基;R2 是氢、可被取代的羟基、可被取代的
氨基或环状
氨基;R3 是化合价或可被取代的亚烷基;R4 是氢、烷基或芳烷基;X 和 Y 独立地是 0、S 或可被取代的亚
氨基,当 Y 是亚
氨基时,Y 与 X 或 R4 所代表的亚
氨基可形成一个环;Z 是亚
氨基或可被取代的含氮杂环]的新型脂质衍
生物及其盐类对血小板活化因子具有抑制活性,可用作各种循环系统疾病和过敏性疾病的预防或治疗剂,也可用作抗肿瘤剂。