[{"from": "human", "value": "Describe this molecule. [C][N][C@@H1][Branch1][S][C][C][=C][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is the L-enantiomer of N-methyldopa. It is functionally related to a L-dopa. It is an enantiomer of a N-methyl-D-dopa. It is a tautomer of a N-methyl-L-dopa zwitterion."}]