[{"from": "human", "value": "Please give me some details about this molecule. [C][C][=C][Branch2][Ring1][Ring1][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][O]"}, {"from": "gpt", "value": "The molecule is a tyrosine derivative that is L-tyrosine in which the hydrogen at position 3 on the phenyl ring is replaced by a methyl group. It is a L-tyrosine derivative and a non-proteinogenic L-alpha-amino acid. It is a tautomer of a 3-methyl-L-tyrosine zwitterion."}]