PHARMACOLOGICALLY ACTIVE PEPTIDE AND PHARMACEUTICAL PREPARATION CONTAINING SAME

摘要

Peptide derivatives and their salts with pharmaceutically acceptable acids or bases, having the general formula (I), wherein R= -H, C1-C3 alkyl, C1-C3 acyl, alkoxycarbonyl with C1-C4 alkyl; R1 = -H, C1-C3 alkyl; R2 = -H, -OH, -OR min 2, wherein R min 2 = C1-C3 alkyl, C1-C3 acyl, benzyl; R3 = -H, -CH3; n = 1, 2 R4 = -H, -COOH, -CONH2, -COOR min 4, wherein R min 4 = C1-C3 alkyl, benzyl; R5 = -H, 4-OH, 3,4-OH, -OR min 5 wherein R min 5 = C1-C3 alkyl, C1-C3 acyl, benzyl; R6 = -OH, -NH2, -OR min 6 wherein R min 6 = C1-C3 alkyl, benzyl; endowed with analgesic, antiviral, immuno-modulating pharmacological properties, and the pharmaceutical forms containing them as active ingredients.