[{"from": "human", "value": "What can you tell me about this molecule? [C][=C][C][=C][Branch1][=Branch1][C][=C][Ring1][=Branch1][Cl][N][C][=C][Ring1][Branch2][C][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is a D-alpha-amino acid that is 6-chlorotryptophan in which the chiral centre has D- (R-) configuration. It is a D-tryptophan derivative, a 6-chlorotryptophan and a D-alpha-amino acid. It is a tautomer of a 6-chloro-D-tryptophan zwitterion."}]