[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][C][=Branch1][C][=O][C@@H1][Branch1][Branch2][C][Ring1][=Branch1][Branch1][C][C][C][C][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is an optically active form of (2,2,3-trimethyl-5-oxocyclopent-3-en-1-yl)acetic acid having R-configuration. It is a conjugate acid of a [(R)-2,2,3-trimethyl-5-oxocyclopent-3-en-1-yl]acetate."}]