Highly Efficient Synthesis of Sterically Hindered Peptides Containing N-Methylated Amino Acid Residues using a Novel 1H-Benzimidazolium Salt
作者:Peng Li、Jie Cheng Xu
DOI:10.1016/s0040-4020(00)00963-7
日期:2000.12
Novel 1H-benzimidazolium type peptide coupling reagent, CMBI, was designed, synthesized, and shown to be efficient in the promotion of the formation of sterically hindered amide and ester bonds. Its high efficiency was proved by model reaction tests and the successful synthesis of various hindered oligopeptides and peptide segments containing N-methyl amino acid residues with fast reaction speeds, low
设计,合成了新型1 H-苯并咪唑型肽偶联剂CMBI,证明其在促进空间位阻酰胺和酯键形成方面是有效的。通过模型反应试验和成功合成了各种受阻寡肽和含有N-甲基氨基酸残基的肽段,证明了其高效率,其反应速度快,外消旋化程度低且产率高。提出了由试剂介导的酰胺键形成机理。