摘要
从河套大黄干燥根与根茎的甲醇提取物中分得 10个蒽醌类成分。经化学方法和波谱学鉴定 ,确定它们的结构分别为 :大黄酚 (chrysophanol, )、大黄素甲醚 (physcion, )、大黄素 (emodin, )、芦荟大黄素 (aloe-emodin, )、大黄酸 (rhein, )、大黄酚 - 1和 8- O- β- D-吡喃葡萄糖苷 (chrysophanol- 1and 8- O- β- D-glucopyranoside, a和 b)、大黄酚 - 8- O-β- D- (6′- O-没食子酰 ) -吡喃葡萄糖苷〔chrysophanol- 8- O-β- D- (6′- O-galloyl) - glucopyranoside, 〕、大黄素甲醚 - 8- O- β- D-吡喃葡萄糖苷 (physcion- 8- O- β- D- glucopyranoside, )、芦荟大黄素 - 8- O- β- D-吡喃葡萄糖苷 (aloe- emodin- 8- O- β- D- glucopyranoside, )。其中 为一新化合物 , 、 、 系首次从该植物中分得。
From the methanolic extract of root and stem of Rheum hotaoense C. Y. Cheng et C. T. Kao. ten anthraquinones were isolated. Their structures were identified by chemical and spectroscopic methods as chrysophanol (Ⅰ), physcion (Ⅱ), emodin (Ⅲ), aloe emodin (Ⅳ), rhein (Ⅴ), chrysophanol l and 8 O β D glucopyranoside (Ⅵ a and Ⅵ b), chrysophanol 8 O β D (6′ O galloyl) glucopyranoside (Ⅶ), physcion 8 O β D glucopyranoside (Ⅷ), aloe emodin 8 O β D glucopyranoside (Ⅸ). Among which Ⅵ, Ⅷ, Ⅸ were obtained from this plant for the first time and Ⅶ is a new compound.
出处
《中草药》
CAS
CSCD
北大核心
2000年第5期321-324,共4页
Chinese Traditional and Herbal Drugs
关键词
河套大黄
蒽醌
大黄酚
没食子酰
吡喃葡萄糖苷
Polygonaceae Rheum L. Rheum hotaoense C.Y.Cheng et C.T.Kao anthraquinone chrysophanol-8-O-β-D-(6′-O-galloyl) glucopyranoside
