[{"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][=Branch1][C][=O][C][Branch2][Ring1][Ring2][C][=C][C][=C][Branch1][Branch1][C][O][Ring1][#Branch1][C][=Branch1][=Branch1][=C][C][=C][Ring1][Branch2][O][O]"}]