(3aS,4S,6aR)-6-{{[(1,1-dimethylethyl)dimethylsilyl]oxy}methyl}-3a,6a-dihydro-2,2-dimethyl-4H-cyclopenta[d]-1,3-dioxol-4-ol

(3aR,6aR)-6-{{[(1,1-dimethylethyl)dimethylsilyl]oxy}methyl}-3a,6a-dihydro-2,2-dimethyl-4H-cyclopenta[d]-1,3-dioxol-4-one

(3aR,4R,6S,7aR)-4-Benzyloxymethyl-6-methoxy-2,2-dimethyl-dihydro-[1,3]dioxolo[4,5-c]pyran-7-one

methyl 6-O-benzyl-3,4-O-isopropylidene-α-D-allopyranoside

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