Variously substituted O-ethyl S-(2-azido-2-deoxy-D-galactopyranosyl) dithiocarbonates have been easily prepared via a two-step azidoxanthation reaction of the corresponding galactals (1,5-anhydro-2-deoxy-D-lyxo-hex-1-enitols). They are efficient glycosyl donors for the stereoselective synthesis of protected precursors of biologically important galactosamine-containing oligosaccharides.
ANOMERIC S-XANTHATES OF 2-AZIDO-2-DEOXY-D-GALACTOPYRANOSYL DERIVATIVES AS EFFICIENT GLYCOSYL DONORS
MARRA, Alberto;
1990
Abstract
Variously substituted O-ethyl S-(2-azido-2-deoxy-D-galactopyranosyl) dithiocarbonates have been easily prepared via a two-step azidoxanthation reaction of the corresponding galactals (1,5-anhydro-2-deoxy-D-lyxo-hex-1-enitols). They are efficient glycosyl donors for the stereoselective synthesis of protected precursors of biologically important galactosamine-containing oligosaccharides.File in questo prodotto:
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