Abstract

A review dealing with the general aspects of oligosaccharide synthesis including the recent advances in protecting group strategies and anomeric control for stereoselective glycosylations, focusing on the formation of 1,2-cis-glycosides, are presented. Recent examples of the intramolecular aglycon delivery approach and of the remote effect on the stereochemistry of the new glycosidic bond are considered. In this part, updated examples of the use of glycosyl halides, thioglycosides, sulfoxides and phenylselenides as glycosylating agents for oligosaccharide synthesis are also discussed.

Keywords: Oligosaccharide Synthesis, glycosidic linkage, pentafluoropropionyl, intramolecular aglycon delivery, N-protecting groups