申请人:Rhone-Poulenc Sante
公开号:US04401658A1
公开(公告)日:1983-08-30
The invention provides tri-, tetra- or penta-peptides of the general formula: ##STR1## in which RCO is a fatty acid residue, R.sub.1 is hydroxyl, amino, alkoxy or benzyloxy, R.sub.2 and R.sub.4 (identical or different) represent hydrogen, carboxyl, alkoxycarbonyl or benzyloxycarbonyl or an optionally esterified N-carbonylglycyl or N-carbonyl-D-alanyl radical, it being impossible for R.sub.2 and R.sub.4 simultaneously to represent hydrogen, R.sub.3 is hydrogen, or represents a glycyl or D-alanyl residue (in which case, only one of the radicals R.sub.2 and R.sub.4 can represent an N-carbonylglycyl or N-carbonyl-D-alanyl radical), X is a sulphur atom or methylene, and m and n=1 or 2, it being understood that if X is methylene, m and n are different from 1, their salts, their preparation and compositions containing them: the compounds are useful as vaccine adjuvants or as non-specific stimulants of anti-infectious or anti-tumoral activity.
本发明提供了一般式为:##STR1## 的三肽、四肽或五肽,其中RCO是脂肪酸残基,R.sub.1是羟基、氨基、烷氧基或苄氧基,R.sub.2和R.sub.4(相同或不同)代表氢、羧基、烷氧羰基或苄氧羰基,或者是可选的酯化的N-羧基甘氨酰基或N-羧基-D-丙氨酰基,R.sub.2和R.sub.4不能同时代表氢,R.sub.3是氢,或代表甘氨酰或D-丙氨酰残基(在这种情况下,只有R.sub.2和R.sub.4中的一个可以代表N-羧基甘氨酰基或N-羧基-D-丙氨酰基),X是硫原子或亚甲基,m和n = 1或2,如果X是亚甲基,则m和n不同于1,它们的盐,它们的制备和含有它们的组合物:这些化合物可用作疫苗佐剂或非特异性刺激剂,具有抗感染或抗肿瘤活性。