[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch1][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C]"}, {"from": "gpt", "value": "The molecule is an optically active form of N-methylvaline having L-configuration. It is a N-methyl-L-alpha-amino acid and a N-methylvaline."}]