[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is the anion resulting from the removal of a proton from the carboxylic acid group of 5-dehydro-4-deoxy-D-glucuronic acid. It is a conjugate base of a 5-dehydro-4-deoxy-D-glucuronic acid."}, {"from": "gpt", "value": "[C][Branch1][O][C@@H1][Branch1][#Branch1][C@H1][Branch1][Ring1][C][=O][O][O][C][=Branch1][C][=O][C][=Branch1][C][=O][O-1]"}]