Studies on the aza-Claisen rearrangement of 4,5-dihydroxylated allylic trichloroacetimidates: the stereoselective synthesis of (2R,3S)- and (2S,3S)-2-amino-3,4-dihydroxybutyric acids
作者:Michael D. Swift、Andrew Sutherland
DOI:10.1016/j.tet.2008.07.062
日期:2008.9
Two new synthetic approaches, involving substrate directed aza-Claisen rearrangements and aza-Claisen rearrangements mediated by chiral Pd(II) catalysts, have been developed for the stereoselective synthesis of (2R,3S)-2-amino-3,4-dihydroxybutyric acid, a dihydroxylated alpha-amino acid from the edible mushroom, Lyophyllum ulmarium and its (2S,3S)-unnatural diastereomer. (C) 2008 Elsevier Ltd. All rights reserved.