A convenient synthesis of the core trisaccharide of the N-glycans
作者:Zhichao Lu、Ning Ding、Wei Zhang、Peng Wang、Yingxia Li
DOI:10.1016/j.tetlet.2011.04.060
日期:2011.6
A convenientsynthesis of the core trisaccharide of the N-glycans was described. Orthogonal one-pot glycosylation of three monosaccharide building blocks was performed to furnish β-glucosyl chitobiose, which was then transformed to β-mannosyl chitobiose by intramolecular epimerization of the C-2 position of the β-glucoside. The key glucosyl donor 7c with differentiated 2,3-OH was prepared following