Chen Wen-Hao, Chen Juan, Shi Yan-Ping
Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China.
J Asian Nat Prod Res. 2011 Oct;13(11):1036-41. doi: 10.1080/10286020.2011.613828. Epub 2011 Oct 10.
Two new anthraquinone glucosides [aloe-emodin 8-O-β-d-(6'-galloyl)glucopyranoside (1) and rhein 8-O-β-d-(6'-galloyl)glucopyranoside (2)], together with 16 known compounds (3-18), were isolated from the roots and rhizomes of Rheum hotaoense C.Y. Cheng et C.T. Kao. Their structures were elucidated on the basis of extensive investigation of 1D and 2D NMR, HR-ESI-MS, and chemical evidence. In addition, the free-radical-scavenging activity was tested using the 1,1-diphenyl-2-picrylhydrazyl assay.
从河套大黄（Rheum hotaoense C.Y. Cheng et C.T. Kao）的根及根茎中分离得到两个新的蒽醌苷[芦荟大黄素8 - O - β - d - (6'-没食子酰基)吡喃葡萄糖苷(1)和大黄酸8 - O - β - d - (6'-没食子酰基)吡喃葡萄糖苷(2)]，以及16个已知化合物(3 - 18)。通过对一维和二维核磁共振、高分辨电喷雾电离质谱及化学证据的广泛研究确定了它们的结构。此外，采用1,1 - 二苯基 - 2 - 苦基肼法测试了其自由基清除活性。
