[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a primary alcohol that is uracil bearing a hydroxymethyl substituent at the 5-position. It has a role as a human metabolite. It is a primary alcohol and a pyrimidone. It is functionally related to a uracil."}, {"from": "gpt", "value": "[C][=C][Branch1][=N][C][=Branch1][C][=O][N][C][=Branch1][C][=O][N][Ring1][Branch2][C][O]"}]