Mechanistic Insight into the TBHP-Mediated Decarboxylative Condensation of α-Ketoacids: Reaction Development and Application to Oligopeptide Synthesis
作者:Kosuke Yoshikawa、Natsuki Kato、Takeshi Nanjo、Yoshiji Takemoto
DOI:10.1248/cpb.c22-00910
日期:2023.5.1
results in a significant advance in convergent peptide synthesis is described. Despite the observation of epimerization with low bulk substrates in preliminary studies, a systematic examination and understanding of the reaction mechanism enabled the development of a modified epimerization-free reaction whereby peptide fragment couplings using peptide α-ketoacids were successfully achieved. Fullsize
为了实现肽链的收敛延伸,长期以来一直在研究能够实现肽片段偶联的酰胺键形成反应。我们小组最近报道的脱羧酰胺化是解决这个问题的潜在方法。在本文中,描述了叔丁基氢过氧化物 (TBHP) 介导的 α-酮酸脱羧酰胺化作用的机理分析,该作用可显着促进收敛肽合成。尽管在初步研究中观察到低体积底物的差向异构化,但系统检查和对反应机制的理解使得能够开发改进的无差向异构化反应,从而成功实现了使用肽 α-酮酸的肽片段偶联。 全尺寸图像