1,2:4,5-Di-O-isopropylidene-beta-D-erythro-2,3-hexodiulo-2,6-pyranose18422-53-231 % similar 2,3-O-Isopropylidene-D-glyceric acid methyl ester52373-72-530 % similar Methyl (4S)-2,2-dimethyl-1,3-dioxolane-4-carboxylate60456-21-530 % similar (3R,4S,5R,6R)-3,4,5-Trimethoxy-6-(methoxymethyl)oxan-2-ol7506-68-530 % similar