methyl 2-azido-4,6-di-O-benzoyl-2-desoxy-β-D-galactopyranosyde

methyl (2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-(1<*>3)-2-azido-2-deoxy-β-D-galactopyranoside

methyl (2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-(1<*>3)-4,6-di-O-acetyl-2-azido-2-deoxy-β-D-galactopyranoside