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 = butyrolactone i + diphosphate