[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is an L-tyrosine derivative in which the phenolic hydrogen is replaced by a dimethylallyl group. It is a tautomer of a 4-O-dimethylallyl-L-tyrosine zwitterion."}, {"from": "gpt", "value": "[C][C][=Branch2][Ring1][Branch2][=C][C][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C]"}]