label: aspulvinone E + O2 = (5Z)-3-(3,4-dihydroxyphenyl)-5-[(3,4-dihydroxyphenyl)methylidene]-5-oxo-2,5-dihydrofuran-3-olate
label_lc: aspulvinone e + o2 = (5z)-3-(3,4-dihydroxyphenyl)-5-[(3,4-dihydroxyphenyl)methylidene]-5-oxo-2,5-dihydrofuran-3-olate