1,2-O-Isopropylidene-A-L-xylofuranose114861-22-232 % similar 1,2-O-Isopropylidene-α-D-xylofuranose20031-21-432 % similar 4,4-Dimethyl-3,5,8-trioxabicyclo[5.1.0]octane57280-22-532 % similar (3aR,4S,6R,6aS)-6-amino-2,2-dimethyltetrahydro-3aH-cyclopenta(d)(1,3)dioxol-4-ol155899-66-431 % similar 1,2:3,4-Di-O-isopropylidene-α-D-galactopyranose4064-06-630 % similar