[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is an oxopurine."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][C][N][C][=N][C][=C][Branch1][S][N][Ring1][Branch1][C][C][=C][C][=Branch1][=Branch1][=C][C][=C][Ring1][=Branch1][Br][C][=Branch1][C][=O][N][Branch1][=Branch2][C][=Branch1][C][=O][N][Ring1][P][C][C]"}]