[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is a naphthofuran. It has a role as a metabolite."}, {"from": "gpt", "value": "[C][C][=C][C][C@H1][C][=Branch1][C][=C][C][C][C][C@@][Ring1][#Branch1][Branch1][=N][C][C@@][Ring1][O][Branch1][=Branch1][O][C][Ring1][=C][=O][O][C]"}]