[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is dicarboxylate anion of 2-dehydro-3-deoxy-D-glucaric acid; major species at pH 7.3. It is a conjugate base of a 2-dehydro-3-deoxy-D-glucaric acid."}, {"from": "gpt", "value": "[C][Branch1][=C][C@@H1][Branch1][#Branch2][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O][O][C][=Branch1][C][=O][C][=Branch1][C][=O][O-1]"}]