(1S,2R,3R,5S)-2,3,6-三羟基-4,8-二氧杂双环[3.3.0]辛烷-7-酮

1,2-O-isopropylidene-α-D-glucofuranulono-6,3-lactone

5-chloro-5-deoxy-1,2-O-isopropylidene-β-L-idofuranuronic acid-3,6-lactone

D-glucurono-6,3-lactone