An efficient synthesis of two monosulfated trisaccharides with the Galbeta1,3GlcNacbeta1,3Galbeta-O-allyl backbone.

摘要

The GlcNAcbeta(1-->3) Gal linked disaccharide 7 was synthesized as key building blocks for the construction of target monosulfated trisaccharides 1 and 2 using oxazoline 3 as glycosyl donor promoted by BF3 x Et2O.