红直獐牙菜的苷类成分

Glycosides from Swertia erythrosticta

目的 研究红直獐牙菜的苷类成分。方法 采用硅胶柱层析分离和 Sephadex L H2 0纯化 ,经理化性质和波谱分析鉴定其化学结构。结果 从红直獐牙菜的水溶性部分得到 7个化合物 ,他们分别为 8- O- β- D-吡喃葡萄糖 - 1,5 -二羟基 - 3 -甲氧基酮 ( )、8- O-β- D-吡喃葡萄糖 - 1,3 ,5 -三羟基酮 ( )、1- O-β- D-吡喃葡萄糖 - 3 ,7,8-三羟基酮 ( )、异荭草苷 ( )、落干酸 ( )、龙胆苦苷 ( )和 β-龙胆二糖 ( )。结论 化合物 、 、 和

Object To study the glycosides from Swertia erythrosticta Maxim Methods The glycosides were isolated on silica gel column and purified by Sephadex LH20, their structures were identified by spectral data and chemical properties Results Seven compounds were obtained from aqueous extract and identified as swertianolin (Ⅰ), norswertianolin (Ⅱ), norswertiaglucoside (Ⅲ), isoorientin (Ⅳ), loganic acid (Ⅴ), gentiopicroside (Ⅵ) and β gentiobiose (Ⅶ) Conclusion Compounds Ⅲ, Ⅳ, Ⅴ, and Ⅶ were first obtained from this plant