[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a member of the class of pyrrolidine-2-ones that is pyrrolidin-2-one in which the hydrogen attached to the nitrogen is replaced by a methyl group. It has a role as a polar aprotic solvent. It is a N-alkylpyrrolidine, a lactam and a member of pyrrolidin-2-ones."}, {"from": "gpt", "value": "[C][N][C][C][C][C][Ring1][Branch1][=O]"}]