[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a barbiturate, the structure of which is that of 2-thiobarbituric acid substituted at C-5 by ethyl and sec-pentyl groups. It has a role as an anticonvulsant, a sedative, an environmental contaminant, a xenobiotic, a drug allergen and an intravenous anaesthetic. It is functionally related to a 2-thiobarbituric acid. It is a conjugate acid of a thiopental(1-)."}, {"from": "gpt", "value": "[C][C][C][C][Branch1][C][C][C][Branch1][#C][C][=Branch1][C][=O][N][C][=Branch1][C][=S][N][C][Ring1][Branch2][=O][C][C]"}]