Cyclotetrapeptides of formula (I) or their pharmaceutically acceptable salts, cyclo[Arg-Asp-(beta-Lactam)] (I) wherein (beta-Lactam) is a biradical of the formula (II) wherein the terminal NH group of the (beta-Lactam) is attached to the α-carbonyl group of the aspartic residue (Asp), and the terminal carbonyl group of the (beta-Lactam) is attached to the α-amino group the arginine residue (Arg); processes for their preparation, and pharmaceutical compositions containing them, as well as their use in human and animal therapy.
公式(I)的环四肽或其药学上可接受的盐,环[Arg-Asp-(β-内酰胺)](I),其中(β-内酰胺)是公式(II)的双自由基,其中(β-内酰胺)的末端NH基团连接到
天冬氨酸残基(Asp)的α-羰基基团上,而(β-内酰胺)的末端羰基基团连接到精
氨酸残基(Arg)的α-
氨基基团上;它们的制备方法,以及含有它们的药物组合物,以及它们在人类和动物治疗中的用途。