label: 2-hydroxy-2-(4'-O-glucopyranosyl-3'-hydroxyphenyl)methyl-3-(3'',4''-dimethoxyphenyl)methylbutyrolactone
label_lc: 2-hydroxy-2-(4'-o-glucopyranosyl-3'-hydroxyphenyl)methyl-3-(3'',4''-dimethoxyphenyl)methylbutyrolactone