Ecological Base-Conditioned Preparation of Dipeptides Using Unprotected α-Amino Acids Containing Hydrophilic Side Chains
作者:Tetsuya Ezawa、Seunghee Jung、Yuya Kawashima、Takuya Noguchi、Nobuyuki Imai
DOI:10.1246/bcsj.20170035
日期:2017.6.15
The coupling reactions of 3-phenylpropanoic acid and N-carboxybenzyl α-amino acids with unprotected α-amino acids containing hydrophilic side chains such as aliphatic alcohol, aromatic alcohol, thiol, carboxylic acid, and amide afforded the corresponding amides in 66–96% yield without racemization via the corresponding mixed carbonic carboxylic anhydrides under basic conditions through an ecological
3-苯基丙酸和N-羧基苄基α-氨基酸与含有亲水侧链的未保护α-氨基酸如脂肪醇、芳香醇、硫醇、羧酸和酰胺的偶联反应得到66-96%的相应酰胺通过生态绿色合成方法,在碱性条件下通过相应的混合碳酸酐不发生外消旋化的收率。