[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a ketoaldonic acid that is rhamnonic acid which is lacking the 3-hydroxy group, has a keto group at the 2-position and L-configuration. It is a ketoaldonic acid and a hexonic acid. It is functionally related to a rhamnonic acid. It is a conjugate acid of a 2-dehydro-3-deoxy-L-rhamnonate."}, {"from": "gpt", "value": "[C][C@@H1][Branch1][#C][C@@H1][Branch1][O][C][C][=Branch1][C][=O][C][=Branch1][C][=O][O][O][O]"}]