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