[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a ribonolactone. It has a role as a metabolite. It is functionally related to a D-ribonic acid."}, {"from": "gpt", "value": "[C][C@@H1][Branch1][O][C@H1][Branch1][=Branch1][O][C][Ring1][Branch1][=O][C][O][O]"}]