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Diacetone acrylamide D(+)-Glucose Pyruvic acid 1,2-O-Isopropylidene-D-glucofuranose Acetylacetone Diacetone Alcohol 2,5-Hexanedione 1,2:5,6-Bis-O-(1-methylethylidene)-D-mannitol 1,2-O-Isopropylidene-a-L-xylofuranose