[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a member of the class of barbiturates, the structure of which is that of barbituric acid substituted at C-5 by two ethyl groups. Formerly used as a hypnotic (sleeping aid). It has a role as a drug allergen."}, {"from": "gpt", "value": "[C][C][C][Branch1][#C][C][=Branch1][C][=O][N][C][=Branch1][C][=O][N][C][Ring1][Branch2][=O][C][C]"}]