申请人:Rhone-Poulenc Industries
公开号:US04916119A1
公开(公告)日:1990-04-10
Tripeptides of the general formula: ##STR1## wherein the symbols R, which may be the same or different represent hydrogen or a fatty acid residue (at least one of them representing a fatty acid residue), R.sub.1 represents hydroxy, amino or alkoxy and R.sub.2 and R.sub.3, which may be the same or different, represent hydrogen, carboxy, carbamoyl or alkoxycarbonyl radical (with the proviso that R.sub.2 and R.sub.3 cannot simultaneously represent a hydrogen atom), the alanine moiety being in the L form, the glutamic acid moiety being in the D form, the lysine moiety (when R.sub.2 or R.sub.3 =a hydrogen atom) being in the L form and the 2,6-diaminopimelic acid moiety or its derivatives (when R.sub.2 and/or R.sub.3 =carboxy, carbamoyl or alkoxycarbonyl) being in the D,D, L,L, D,D/L,L (racemic) or D,L (meso) form, and salts thereof, possess immunological adjuvant and immunostimulant activity.
通式为:##STR1## 的三肽,其中符号R,可以相同或不同,代表氢或脂肪酸残基(其中至少一个代表脂肪酸残基),R.sub.1代表羟基,氨基或烷氧基,R.sub.2和R.sub.3,可以相同或不同,代表氢,羧基,氨基甲酰基或烷氧羰基基团(但须满足R.sub.2和R.sub.3不能同时代表氢原子),丙氨酸部分为L型,谷氨酸部分为D型,赖氨酸部分(当R.sub.2或R.sub.3=氢原子时)为L型,2,6-二氨基庚二酸部分或其衍生物(当R.sub.2和/或R.sub.3=羧基,氨基甲酰基或烷氧羰基时)为D,D,L,L,D,D/L,L(外消旋)或D,L(内消旋)型,并且它们的盐具有免疫佐剂和免疫刺激活性。