(3aS,6aS)-2,2-dimethyltetrahydro-4H-cyclopenta[d][1,3]dioxol-4-one

[(3aS,4E,5S,6aR)-4-ethylidene-2,2-dimethyltetrahydro-3aH-cyclopenta[d][1,3]dioxol-5-yl]acetic acid methyl ester

5-Deoxy-1,2,3-tri-O-acetyl-<5-2H>-D-ribofuranose

[(3aS,4E,5S,6aR)-4-ethylidene-2,2-dimethyltetrahydro-3aH-cyclopenta[d][1,3]dioxol-5-yl]acetic acid 2-[4-(tert-butyldimethylsilyloxy)phenyl]ethyl ester

[(3aS,4E,5S,6aR)-4-ethylidene-2,2-dimethyltetrahydro-3aH-cyclopenta[d][1,3]dioxol-5-yl]acetic acid 2-[3,4-bis(tert-butyldimethylsilyloxy)phenyl]ethyl ester