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

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

O--(2->6)-O-(2-acetamido-3,4-di-O-acetyl-2-deoxy-α-D-galactopyranosyl)-(1->3)-N-(trichloroethoxycarbonyl)-L-serine benzyl ester