[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is the 3,4-didehydro derivative of D-glucose."}, {"from": "gpt", "value": "[C][Branch2][Ring1][Branch1][C@@H1][C][=Branch1][C][=O][C][=Branch1][C][=O][C@H1][Branch1][Branch2][C][Branch1][Ring2][O][Ring1][Branch2][O][O][O]"}]