[{"from": "human", "value": "Please give me some details about this molecule. [C][C][Branch1][C][C][C@@H1][Branch1][#Branch1][C][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is the (3R)-beta-isomer of leucine. It is an enantiomer of a (3S)-beta-leucine. It is a tautomer of a (3R)-beta-leucine zwitterion."}]