methyl 2.3-di-O-methyl-α-D-galactopyranoside
methyl 2,3-di-O-methyl-6-O-triphenylmethyl-α-D-galactopyranoside
methyl 4-O-benzyl-2,3-di-O-methyl-α-D-galactopyranoside
methyl 4-O-benzyl-2,3,6-tri-O-methyl-α-D-galactopyranoside
methyl 4-O-benzyl-2,3-di-O-methyl-6-O-triphenylmethyl-α-D-galactopyranoside