PARTIALLY BENZYLATED OXAZOLINE DERIVATIVES OF 2-ACETAMIDO-2-DEOXY-D-GLUCOPYRANOSE AS "STANDARDIZED INTERMEDIATES" FOR OLIGOSACCHARIDE SYNTHESIS. PREPARATION OF DISACCHARIDES HAVING THE SEQUENCES β-D-GlcpNAc(1->x)-D-Gal AND β-D-GlcpNAc(1->4)-D-GlcNAc

Article abstract of DOI:10.1016/S0008-6215(00)85613-X

Three benzyl tri-O-benzyl-1-thio-β-D-galactopyranosides (5, 6, and 7) were prepared from the corresponding O-acyltri-O-benzyl-D-galactopyranosyl bromides (1a-c) via the benzylxanthates 2a-c and the fully protected benzyl thiogalactosides 3a-c.The α anomer