THE SYNTHESIS OF DIPEPTIDES WHICH CONTAIN α-AMINONITRILES AS THEIR C-TERMINAL RESIDUES
作者:Katsuhiro Kawashiro、Hideyuki Yoshida、Shiro Morimoto
DOI:10.1246/cl.1974.1
日期:1974.1.5
The synthesis of some dipeptides which contain α-aminonitriles as their C-terminal residues is described. The coupling reactions of active esters of N-tritylamino acids, p-nitrophenyl esters or cyanomethyl esters, with α-aminonitriles were carried out in N,N-dimethylformamide. The N-trityl protecting groups of the reaction products were removed by acid hydrolysis without affecting their nitrile groups
描述了一些含有 α-
氨基腈作为其 C 端残基的二肽的合成。N-三苯甲基
氨基酸的活性酯、对
硝基苯酯或
氰基甲酯与α-
氨基腈的偶联反应在
N,N-二甲基甲酰胺中进行。反应产物的N-三苯甲基保护基团通过酸
水解被去除而不影响它们的腈基团。以此方式合成了甘
氨酰
氨基乙腈乙酸酯(8)、甘
氨酰-DL-α-
氨基
丙腈乙酸酯(10)和DL-丙
氨酰
氨基乙腈乙酸酯(11)。