[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is an oxacycle. It has a role as a metabolite."}, {"from": "gpt", "value": "[C][C][=C][Branch1][Branch2][C][=C][C][=C][Ring1][=Branch1][O][C][=C][C][=Branch1][C][=O][O][Ring1][=N]"}]