[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C][Branch2][Ring1][=Branch2][C][=C][C][Ring1][=Branch1][Branch1][=N][C][C][Branch1][Ring2][O][Ring1][Branch2][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1][O]"}, {"from": "gpt", "value": "The molecule is transition state of the chorismate mutase catalyzed Claisen rearrangement of chorismate to prephenate. It is a conjugate base of an 8-hydroxy-2-oxabicyclo[3.3.1]non-6-ene-3,5-dicarboxylic acid."}]