申请人:Ciba-Geigy Corporation
公开号:US03934008A1
公开(公告)日:1976-01-20
The new hypocalcaemically active peptides of formula I h-cys-Gly-Asn-Leu-Ser-Thr-Cys-Met-Leu-Gly-Thr-Tyr-Thr-Gln-Asp-Phe-Asn-Lys-P he-His-Thr-Phe-Pro-Gln-Thr-Ala-Ile-Gly-val-Gly-Ala-Pro-OH and corresponding compounds in which one or more of the asparagine and glutamic acid radicals are replaced by the aspartic acid or glutamic acid radical and/or the aspartic acid radical is replaced by the asparagine radical, their dimers, especially those in which 2 identical peptide sequences (1-32 and 1'-32') are joined in an anti-parallel arrangement via the cysteine radicals 1,7' and 7,1' by means of a disulfide bond, and derivatives are useful as hypocalcaemic agents and are prepared by splitting off groups protecting at least one amino or one carboxyl group or oxidizing the corresponding sulfides to the disulfides or condensing together adequate peptides.
公式I中的新低钙血活性肽和相应的化合物,其中一个或多个天冬氨酸和谷氨酸基团被天冬酸或谷氨酸基团所替换,和/或天冬酸基团被天冬氨酸基团所替换,其二聚体,特别是那些通过一对二硫键连接两个相同的肽序列(1-32和1'-32'),以反平行排列方式通过半胱氨酸基团1,7'和7,1'连接在一起的肽,及其衍生物可用作降低血钙剂,并通过去除至少一个氨基或一个羧基的保护基团或将相应的硫化物氧化为二硫化物或将适当的肽缩合而制备。