Abstract Known allyl 4, 6-O-benzylidene-α-d-glucopyranoside was first converted into methyl (prop-1-enyl 2, 3-di-O-benzyl-4-O-chloroacetyl-α-d-glucopyranosid)-uronate. Acid hydrolysis, followed by treatment with (bromomethylene) dimethylammonium bromide, gave methyl (2, 3-di-O-benzyl-4-O-chloroacetyl-α-d-glucopyranosyl bromide) uronate. Condensation of this bromide with 3-O-acetyl-1, 6-anhydro-2-azido-2-deoxy-β-d- ...
