Facilitating drug discovery: We describe a novel method for the selective catalytic N-dealkylation of drugmolecules on a nanoporousgold (NPG) catalyst producing valuable N-dealkylated metabolites and intermediates. Various examples examined in this study showed that aerobic catalytic N-dealkylation of drugmolecules on NPG has a broad scope, supporting N-deethylation, N-deisopropylation and N-demethylation