[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a member of oxolanes."}, {"from": "gpt", "value": "[C][O][C][=Branch1][C][=O][/C][=Branch2][Ring1][Branch2][=C][\\C][=Branch1][C][=O][C][Branch1][Branch2][C][=Branch1][C][=O][O][/-Ring1][#Branch1][C][=C][C][=C][C][=C][Ring1][=Branch1][/C][=C][C][=C][C][=C][Ring1][=Branch1]"}]