7-methylxanthine + formaldehyde + NAD(+) + H2O => theobromine + NADH + O2 + H(+)
7-methylxanthine + formaldehyde + nad(+) + h2o => theobromine + nadh + o2 + h(+)
7-methylxanthine + formaldehyde + NAD(+) + H2O => theobromine + NADH + O2 + H(+)
7-methylxanthine + formaldehyde + nad(+) + h2o => theobromine + nadh + o2 + h(+)