[{"from": "human", "value": "Provide a description of this molecule. [C][=C][C][=C][Branch1][=Branch1][C][=C][Ring1][=Branch1][F][C][=Branch1][Branch1][=C][N][Ring1][Branch2][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is a non-proteinogenic alpha-amino acid that is tryptophan in which the hydrogen at position 5 on the indole ring is replaced by a fluoro group. It is a tryptophan derivative, an organofluorine compound and a non-proteinogenic alpha-amino acid."}]