(5R)-5-[(1S)-1,2-dihydroxyethyl]-3-hydroxy-4-oxofuran-2-olate

(5R)-5-[(1S)-1,2-dihydroxyethyl]-3-hydroxy-4-oxo-furan-2-olate

(5R)-5-[(1S)-1,2-dihydroxyethyl]-3-hydroxy-4-keto-furan-2-olate