[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is a radiosensitizer that targets hypoxic cells and act as oxygen substitute making tumor cells sensitive to radiation damage."}, {"from": "gpt", "value": "[C][=C][N][Branch1][N][C][=Branch1][Ring2][=N][Ring1][Branch1][N+1][=Branch1][C][=O][O-1][C][C][Branch1][Ring1][C][O][O]"}]