(3aR,4R,5R,6S,6aR)-4-ethenyl-tetrahydro-4-[(4-methoxybenzyl)oxy]-2,2-dimethyl-4H-cyclopenta[d]-1,3-dioxol-5-ol methanesulfonate

(3aS,4S,5R,6R,6aR)-6-ethenyl-tetrahydro-2,2-dimethyl-4H-cyclopenta[d]-1,3-dioxole-4,5-diol 5-methanesulfonate

(3aR,4R,6S,7S,7aR)-tetrahydro-6-methoxy-7-[(4-methoxybenzyl)oxy]-2,2-dimethyl-4H-1,3-dioxolo[4,5-c]pyran-4-methanol

methyl 2-O-allyl 6-O-benzyl-3,4-O-isopropylidene-α-D-altropyranoside

methyl 2-O-allyl-4,6-O-benzylidene-α-D-altropyranoside