[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a hydroxypyrimidine. It is functionally related to a thymine."}, {"from": "gpt", "value": "[C][C][Branch1][#C][C][Branch1][O][N][C][=Branch1][C][=O][N][C][Ring1][#Branch1][=O][O][O]"}]