[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C][C][C][C][C][C][C][C][C][C][N][C][C][C][C][Ring1][Branch1][=O]"}, {"from": "gpt", "value": "The molecule is pyrrolidin-2-one substituted at nitrogen by an n-dodecyl group. It has a role as an epitope."}]