[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a 2-oxo monocarboxylic acid anion. It is functionally related to a L-idonate and a L-gulonate. It is a conjugate base of a 2-dehydro-L-idonic acid."}, {"from": "gpt", "value": "[C][Branch2][Ring1][#Branch1][C@@H1][Branch2][Ring1][C][C@H1][Branch1][=C][C@@H1][Branch1][#Branch2][C][=Branch1][C][=O][C][=Branch1][C][=O][O-1][O][O][O][O]"}]