[{"from": "human", "value": "Create a molecule with the structure as the one described. 5-fluorotryptophan can be used as substrate analogue to study enzyme mechanisms by NMR spectroscopy."}, {"from": "gpt", "value": "[C][=C][C][=C][Branch1][=Branch1][C][=C][Ring1][=Branch1][F][C][=Branch1][Branch1][=C][N][Ring1][Branch2][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}]