[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is an oxopurine."}, {"from": "gpt", "value": "[C][=C][Branch1][=Branch2][N][C][=Branch1][C][=O][N][Ring1][=Branch1][N][C][=Branch1][C][=O][N][C][Ring1][O][=S]"}]