preferred_name: butyrolactone II + dimethylallyl diphosphate => butyrolactone I + diphosphate
preferred_name_lc: butyrolactone ii + dimethylallyl diphosphate => butyrolactone i + diphosphate
label: butyrolactone II + dimethylallyl diphosphate => butyrolactone I + diphosphate
label_lc: butyrolactone ii + dimethylallyl diphosphate => butyrolactone i + diphosphate