[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a tetronic acid derivative and a monocarboxylic acid anion."}, {"from": "gpt", "value": "[C][=C][Branch1][#C][C@@H1][Branch1][=Branch1][O][C][Ring1][Branch1][=O][C][C][=Branch1][C][=O][O-1][O]"}]