[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][=Branch1][C][=O][N][C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is the simplest member of the class of pyrrolidin-2-ones, consisting of pyrrolidine in which the hydrogens at position 2 are replaced by an oxo group. The lactam arising by the formal intramolecular condensation of the amino and carboxy groups of gamma-aminobutyric acid (GABA). It has a role as a polar solvent and a metabolite."}]