[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][Branch1][#Branch2][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][O][C][=Branch1][C][=O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is an optically active form of 4-hydroxy-2-oxoglutaric acid having L-configuration."}]