(2R,3S)-3,4-epoxy-1,2-O-isopropylidenebutane-1,2-diol
ethyl (R)-2-[(4'R)-2',2'-dimethyl-1,3-dioxolan-4'-yl]-2-hydroxyacetate
(S)-1-((R)-2,2-dimethyl-1,3-dioxolan-4-yl)ethane-1,2-diol
5,6-O-isopropylidene-D-isoascorbic acid
(2,2-Dimethyl-[1,3]dioxolan-4-yl)-ethanol