3,4-dihydroxybenzaldehyde + tyramine + AH2 = norbelladine + A + H2O
3,4-dihydroxybenzaldehyde + tyramine + ah2 = norbelladine + a + h2o
3,4-dihydroxybenzaldehyde + tyramine + AH2 = norbelladine + A + H2O
3,4-dihydroxybenzaldehyde + tyramine + ah2 = norbelladine + a + h2o