作者:Chuanlang Zhan、Jiannian Yao、Damei Ke、Xiao Li、Alexander Li
DOI:10.1055/s-0029-1217167
日期:——
We report a simple approach to synthesize a new class of imide-dipeptides. This approach is mild, and the starting materials are the easily accessible amino acid derivatives. The imide-dipeptides were synthesized from the coupling of an amide and a 4-nitrophenyl activating ester of an amino acid. The acidic proton of the first amide was removed by 1 equivalent of n-butyl lithium to afford the corresponding amide anion which then reacted with the activating ester to give the desired imide derivatives.