The present invention provides a method for producing a peptide, characterized in that it comprises converting an -SH group of a peptide comprising an amino acid residue having the -SH group to an -OH group, wherein said method comprises the following steps (a) to (c): (a) allowing an -SH group in a peptide to react with a methylating agent to convert the -SH group to an -SMe group; (b) allowing the -SMe group obtained in the step (a) to react with a cyanizing agent to produce a reaction intermediate; and (c) converting the reaction intermediate obtained in the step (b) to a peptide comprising an amino acid residue having an -OH group under more basic conditions than the conditions in the step (b).
本发明提供了一种生产
多肽的方法,其特征在于该方法包括将包含具有-SH基团的
氨基酸残基的
多肽的-SH基团转化为-OH基团,其中所述方法包括以下步骤(a)至(c):(a) 使
多肽中的-SH 基团与甲基化剂反应,将-SH 基团转化为-SMe 基团;(b) 使步骤(a)中得到的-SMe 基团与
氰化剂反应,生成反应中间体;以及 (c) 在比步骤(b)更碱性的条件下,将步骤(b)中得到的反应中间体转化为包含具有-OH 基团的
氨基酸残基的
多肽。