Stereocontrolled synthesis of all four stereoisomers of fully protected 2-amino-3-hydroxypentanoic acid from imines derived from d-glyceraldehyde
作者:Ramón Badorrey、Carlos Cativiela、María D. Díaz-de-Villegas、JoséA. Gálvez
DOI:10.1016/s0040-4020(99)00880-7
日期:1999.12
N-Benzylimines derivedfrom conveniently protected (R)-glyceraldehyde underwent diastereoselective phenylmagnesium bromide addition to afford the corresponding aminodiols, whose absolute configuration at the newly formed stereogenic carbon depends on the O-protecting group. These compounds can be easily transformed into optically pure N-tert-butoxycarbonyl-1-phenyl-2,3-epoxy-1-propylamines, which are