butyrolactone I + diphosphate => butyrolactone II + dimethylallyl diphosphate
butyrolactone i + diphosphate => butyrolactone ii + dimethylallyl diphosphate
butyrolactone I + diphosphate => butyrolactone II + dimethylallyl diphosphate
butyrolactone i + diphosphate => butyrolactone ii + dimethylallyl diphosphate