3,5-dihydroxybenzaldehyde + 3,4-dihydroxybenzaldehyde => piceatannol + O2
3,5-dihydroxybenzaldehyde + 3,4-dihydroxybenzaldehyde => piceatannol + o2
3,5-dihydroxybenzaldehyde + 3,4-dihydroxybenzaldehyde => piceatannol + O2
3,5-dihydroxybenzaldehyde + 3,4-dihydroxybenzaldehyde => piceatannol + o2