申请人:DAIICHI PHARMACEUTICAL CO., LTD.
公开号:EP0348942A2
公开(公告)日:1990-01-03
Lipid membrane structures containing, in the lipid membrane thereof, a compound represented by formula (I):
wherein R₁ represents a hydrogen atom or a fatty acid residue; R₂ represents a hydrogen atom or an acyclic hydrocarbon residue; R₃ represents an amino group, a guanidino group or an amidino group; and n represents an integer of from 1 to 6; provided that R₁ and R₂ do not represent hydrogen atoms at the same time, or a salt thereof.
The lipid membrane structures exhibit excellent specific affinity for tumor cells and can be delivered preferentially to tumor cells.
在其脂膜中含有式(I)代表的化合物的脂膜结构:
其中 R₁ 代表氢原子或脂肪酸残基;R₂ 代表氢原子或无环烃残基;R₃ 代表氨基、胍基或脒基;n 代表 1 至 6 的整数;但 R₁ 和 R₂ 不能同时代表氢原子,或其盐。
脂膜结构对肿瘤细胞具有极佳的特异性亲和力,可优先输送到肿瘤细胞。