[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is an aminonicotinic acid in which the amino group is situated at position 4 of the pyridine ring. It has a role as a metabolite. It is an aromatic amine, an aminopyridine and an aminonicotinic acid. It is functionally related to a 4-aminopyridine and a nicotinic acid."}, {"from": "gpt", "value": "[C][=C][N][=C][C][=Branch1][Branch1][=C][Ring1][=Branch1][N][C][=Branch1][C][=O][O]"}]