Caffeine + Oxygen + Water → 1,3,7-Trimethyluric acid + Hydrogen peroxide
Acetyl-CoA + Paraxanthine → 5-Acetylamino-6-formylamino-3-methyluracil + Coenzyme A
NADH + Oxygen + Paraxanthine → 7-Methylxanthine + Formaldehyde + NAD + Water
5-Acetylamino-6-formylamino-3-methyluracil → 5-Acetylamino-6-amino-3-methyluracil
Caffeine + NADH + Oxygen → Formaldehyde + NAD + Paraxanthine + Water
NADH + Oxygen + Theophylline → 1-Methylxanthine + Formaldehyde + NAD + Water
Caffeine + NADH + Oxygen → Formaldehyde + NAD + Theophylline + Water
Caffeine + NADH + Oxygen → Formaldehyde + NAD + Theobromine + Water
1-Methylxanthine + Oxygen + Water → 1-Methyluric acid + Hydrogen peroxide
Oxygen + Paraxanthine + Water → 1,7-Dimethyluric acid + Hydrogen peroxide
Oxygen + Theobromine + Water → 3,7-Dimethyluric acid + Hydrogen peroxide
7-Methylxanthine + Oxygen + Water → 7-Methyluric acid + Hydrogen peroxide