Stereoselective amination of chiral enolates: Synthesis of enantiomerically pure α,β-diamino acids, chiral key compounds in the synthesis of conformationally constrained peptido- and non-peptidomimetics
作者:Ramón Badorrey、Carlos Cativiela、Maria D. Diaz-de-Villegas、JoséA. Gálvez
DOI:10.1016/0957-4166(95)00368-y
日期:1995.11
This work describes an efficient synthesis of enantiomerically pure (R)-2-aminomethylalanine, (R)-2-aminomethylnorvaline, (R)-2-aminomethylvaline, (R)-2-aminomethylleucine and (R)-2-aminomethylphenylalanine by electrophilic amination of chiral 2-cyanoesters with O-(diphenylphosphinyl)hydroxylamine followed by appropiate reduction and hydrolysis.
这项工作描述了对映体纯的(R)-2-
氨基甲基丙
氨酸,(R)-2-
氨基甲基正缬
氨酸,(R)-2-
氨基甲基缬
氨酸,(R)-2-
氨基甲基亮
氨酸和(R)-2-
氨基甲基苯基丙
氨酸的有效合成用O-(
二苯基膦基)
羟胺胺化手性2-
氰基酯,然后适当还原和
水解。