preferred_name: (2R,4S)-2-methyl-2,4-dihydroxydihydrofuran-3-one + H2O <=> (2R,4S)-2-methyltetrahydrofuran-2,3,3,4-tetrol
preferred_name_lc: (2r,4s)-2-methyl-2,4-dihydroxydihydrofuran-3-one + h2o <=> (2r,4s)-2-methyltetrahydrofuran-2,3,3,4-tetrol
label: (2R,4S)-2-methyl-2,4-dihydroxydihydrofuran-3-one + H2O <=> (2R,4S)-2-methyltetrahydrofuran-2,3,3,4-tetrol
label_lc: (2r,4s)-2-methyl-2,4-dihydroxydihydrofuran-3-one + h2o <=> (2r,4s)-2-methyltetrahydrofuran-2,3,3,4-tetrol