[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][Branch1][N][C][=Branch1][C][=C][C][=Branch1][C][=O][O][Ring1][#Branch1][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a gamma-lactone."}]