methyl 4,6-O-benzylidene-β-D-galactopyranoside 3-O-p-toluenesulfonate

methyl 4,6-O-benzylidene-β-D-idopyranoside

methyl 4,6-O-benzylidene-2-O-p-toluoyl-lyxo-β-D-hexopyranosid-3-ulose