[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a naphthofuran. It has a role as a metabolite."}, {"from": "gpt", "value": "[C][C@H1][C][Branch2][Ring2][C][C][=C][Branch1][Ring2][O][Ring1][Branch1][C][=C][Branch1][#C][C][=Branch1][O][=C][Branch1][#Branch1][C][=C][Ring1][=Branch1][C][=O][O][O][C][=Branch1][C][=N][C][Ring1][S][=O][Branch1][C][C][C]"}]