[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a lactol that is the pyranose form of ascarylose. It is an ascarylose and a lactol."}, {"from": "gpt", "value": "[C][C@H1][C@@H1][Branch1][=N][C][C@H1][Branch1][Branch2][C][Branch1][Ring2][O][Ring1][=Branch1][O][O][O]"}]