作者:Faustine Bizet、Nicolo Tonali、Jean-Louis Soulier、Agostino Oliva、Julia Kaffy、Benoit Crousse、Sandrine Ongeri
DOI:10.1039/c8nj03635g
日期:——
difficulty in synthesizing such peptide analogues, as illustrated by the synthesis of tripeptide derivatives containing two consecutive aza-amino acids. Herein, we report some general guidelines regarding the activation and the coupling of alkyl-hydrazides either mutually or with a natural amino acid, taking into account their nucleophilicity and the nature of their side chains.
虽然已证明在肽中掺入一种氮杂氨基酸有利于诱导结构限制,增加对蛋白水解的抵抗力和改善生物活性,但仅极少数的例子是掺入两种或更多种连续的氮杂氨基酸已经报道。在这项工作中,我们证明了这一事实可能是由于合成此类肽类似物时出乎意料的困难,正如合成含有两个连续氮杂氨基酸的三肽衍生物所说明的那样。在此,我们考虑到烷基酰肼的亲核性和侧链的性质,报告了一些相互关联或与天然氨基酸活化和偶联酰肼的一般指导原则。