[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a member of the class of formamides that is formamide substituted by a butyl group at the N atom. It has a role as a human metabolite. It is functionally related to a formamide."}, {"from": "gpt", "value": "[C][C][C][C][N][C][=O]"}]