Lipid derivatives represented by the formula:
EMI ID=298/1 HE=30 WI=75 TI=CHE
wherein R1 is alkyl or alkylcarbamoyl; R2 is lower alkyloxy, lower alkylcarbamoyloxy, lower alkylcarbonylamino, lower alkyloxycarbonylamino, lower alkylureido, lower alkyloxymethyl, lower alkylcarbonylmethyl, cyanomethyl, heterocyclic group, or heterocyclyloxy; R2' is hydrogen or R2 and R2' taken together form -O(CH2)m-wherein m is an integer of 1 to 5; Rs, R4, and Rs each is hydrogen or lower alkyl or two or three of R3, R4, and R5 taken together with the adjacent nitrogen atom form cyclic ammonio; R5 is hydrogen or lower alkylcarbonyl; X- is a counter anion; Y is oxygen or sulfur; and n is an integer of 1 to 10, being useful as PAF antagonists, e.g., as antithrombotic, antivasoconstricting, antibronchoconsticting agent or antitumor agent.
用公式表示的脂质衍
生物:
EMI ID=298/1 HE=30 WI=75 TI=CHE
其中 R1 是烷基或烷基
氨基甲酰基;R2 是低级烷
氧基、低级烷基
氨基甲酰基
氧基、低级烷基羰基
氨基、低级烷
氧基羰基
氨基、低级烷基
脲基、低级烷
氧基
甲基、低级烷基羰基
甲基、
氰基
甲基、杂环基团或杂环
氧基;R2'是
氢或 R2 和 R2'共同形成-O(
CH2)m-其中 m 是 1 至 5 的整数;Rs、R4 和 Rs 各为
氢或低级烷基,或 R3、R4 和 R5 中的两个或三个与相邻
氮原子结合形成环
氨 基;R5 为
氢或低级烷基羰基;X- 为反阴离子;Y 为
氧或
硫;n 为 1 至 10 的整数,可用作 PAF
拮抗剂,例如g.,作为抗血栓、抗血管收缩、抗支气管收缩剂或抗肿瘤剂。