[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][Branch1][=C][N][Ring1][=Branch1][C][C][=Branch1][C][=N][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a dehydroamino acid that is tryptophan in which the amino group has been oxidised to the corresponding imine. It has a role as a bacterial metabolite. It is a dehydroamino acid, a ketimine, a tryptophan derivative and a member of indoles. It is a conjugate acid of a 2-imino-3-(indol-3-yl)propanoate. It is a tautomer of an alpha,beta-didehydrotryptophan and a 2-iminio-3-(indol-3-yl)propanoate."}]