O-<5-acetamido-3,5-dideoxy-D-glycero-α-D-galacto-2-nonulopyranosylonic acid-(2->6)-O-(2-acetamido-2-deoxy-α-D-galactopyranosyl)-(1->3)-N-(acetyl)-L-serine-(N'-benzyloxycarbonylaminoethyl)amide

N-trichloroethoxycarbonyl-3-O-(2-acetamido-3,4-di-O-acetyl-2-deoxy-6-O-triphenylmethyl-α-D-galactopyranosyl)-L-serine benzyl ester

N-trichloroethoxycarbonyl-3-O-(3,4-di-O-acetyl-2-azido-2-deoxy-6-O-triphenylmethyl-α-D-galactopyranosyl)-L-serine benzyl ester

phenyl 2-azido-2-deoxy-3-O-benzyl-4,6-O-benzylidene-1-thio-α-D-galactopyranoside

phenyl 2-azido-3-O-benzyl-2-deoxy-1-thio-α-D-galactopyranoside