[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][N][C][=C][Branch1][O][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][=Branch2][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is a tryptophan derivative that is tryptophan carrying a single methyl substituent at position 1 on the indole. It has a role as an EC 1.13.11.52 (indoleamine 2,3-dioxygenase) inhibitor and an antineoplastic agent. It is a non-proteinogenic alpha-amino acid and a tryptophan derivative."}]