N-(4-Oxocyclohexyl)acetamide is a metabolite of (trans-N-(4-nitroxycyclohexyl)acetamide (CAS 137213-91-3). N-(4-Oxocyclohexyl)acetamide has been used as a reactant in the preparation of 2-Pyrimidinecarbonitrile derivatives as falcipain inhibitors and antiparasitic agents.