[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is an optically active form of 2-isopropylmalic acid having S-configuration. It is a conjugate acid of a (2S)-2-isopropylmalate(2-)."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][C@@][Branch1][#Branch1][C][C][=Branch1][C][=O][O][Branch1][=Branch1][C][=Branch1][C][=O][O][O]"}]