N1-acetyl-N2-formyl-5-methoxykynuramine is a product of melatonin oxidation in rats.
Rozov SV, Filatova EV, Orlov AA, Volkova AV, Zhloba AR, Blashko EL, Pozdeyev NV. N1-acetyl-N2-formyl-5-methoxykynuramine is a product of melatonin oxidation in rats. J Pineal Res. 2003 Nov; 35(4):245-50.