[{"from": "human", "value": "Provide a description of this molecule. [C][C][C][C@@H1][C][C][=Branch1][C][=O][N][Branch1][Ring2][C][Ring1][=Branch1][C@@H1][Branch1][Ring1][C][C][C][=Branch1][C][=O][N]"}, {"from": "gpt", "value": "The molecule is a non-proteinogenic amino acid derivative that is butanamide in which the pro-S hydrogen at position 2 is replaced by a (4R)-2-oxo-4-propylpyrrolidin-1-yl. Used for treatment of partial onset seizures related to epilepsy. It has a role as an anticonvulsant. It is a gamma-lactam and a non-proteinogenic amino acid derivative. It is functionally related to a L-alpha-aminobutyric acid."}]