O-(2-azido-3,4-di-O-benzyl-2-deoxy-α-D-galactopyranosyl)-N-(benzyloxycarbonyl)-L-serine benzyl ester

O-[2-azido-3,4-di-O-benzyl-6-O-{3',6'-di-O-benzyl-2'-deoxy-2'-(4,5-dichlorophthalimido)-4'-O-(3'',4'',6''-tri-O-benzyl-2''-O-p-toluoyl-β-D-galactopyranosyl)-β-D-glucopyranosyl}-2-deoxy-α-D-galactopyranosyl]-N-(benzyloxycarbonyl)-L-serine benzyl ester