Synthesis of N-modified ganglioside GM3 derivatives
作者:Mingwei Zheng、Xin-Shan Ye
DOI:10.1016/j.tet.2011.12.019
日期:2012.2
GangliosideGM3 and its derivatives have many important biological functions. Using diethyl phosphite protected sialic acid as glycosyl donor and 3,2′,3′,4′-unprotected lactose as glycosyl acceptor, the sialic acid-containing trisaccharide was assembled with excellent anomeric stereoselectivity. The trisaccharide was further coupled with ceramide precursor to yield sphingosine 1. Based on this key