for the following products
1,2-O-Isopropylidene-alpha-D-glucofuranurono-6,3-lactone | 1,2-O-Isopropylidene-alpha-D-glucofuranurono-6,3-lactone | 1,2-O-Isopropylidene-alpha-D-glucofuranurono-6,3-lactone | D-Glucorono-6,3-lactone acetonide and (3aR,3bS,6S,6aR,7aR)-6-hydroxy-2,2-dimethyltetrahydrofuro[2',3':4,5]furo[2,3-d][1,3]dioxol-5(3ah)-one
