succinimidyl [2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl]-(1→3)-2-N-acetyl-2-deoxy-α-D-galactopyranoside

phenyl 2-azido-2-deoxy-1-thio-6-O-trityl-D-galactopyranoside

phenyl 4-O-(2-azido-4-benzyloxycarbonylamino-2,4,6-trideoxy-α-D-galactopyranosyl)-2-azido-3-O-benzyl-6-O-tert-butyl-diphenylsilyl-2-deoxy-1-thio-α-D-galactopyranoside

phenyl 4-O-(2-azido-3-O-benzoyl-4-phthalimido-2,4,6-trideoxy-α-D-galactopyranosyl)-2-azido-3-O-benzyl-6-O-tert-butyl-diphenylsilyl-2-deoxy-1-thio-α-D-galactopyranoside