Peptide Bond Formation of Amino Acids by Transient Masking with Silylating Reagents
作者:Wataru Muramatsu、Hisashi Yamamoto
DOI:10.1021/jacs.1c02600
日期:2021.5.12
A one-pot peptide bond-forming reaction has been developed using unprotected amino acids and peptides. Two different silylating reagents, HSi[OCH(CF3)2]3 and MTBSTFA, are instrumental for the successful implementation of this approach, being used for the activation and transient masking of unprotected amino acids and peptides at C-termini and N-termini, respectively. Furthermore, CsF and imidazole
使用未受保护的氨基酸和肽开发了一种一锅式肽键形成反应。两种不同的甲硅烷基化试剂 HSi[OCH(CF 3 ) 2 ] 3和 MTBSTFA 有助于成功实施该方法,用于激活和瞬时掩蔽C端和N端未受保护的氨基酸和肽, 分别。此外,CsF 和咪唑用作催化剂,活化 HSi[OCH(CF 3 ) 2 ] 3并且还加速化学选择性硅烷化。这种方法是通用的,因为它可以容忍带有一系列官能团的侧链,同时提供高达 99% 以上的相应肽收率,而无需任何外消旋或聚合。