6,8-Di-C-glycosyl Flavonoids from Dendrobium huoshanense

详细信息    查看全文

• 作者：Chia-Chuan Chang ; Angela Fay Ku ; Yun-Yu Tseng ; Wen-Bin Yang ; Jim-Min Fang ; Chi-Huey Wong
• 刊名：Journal of Natural Products
• 出版年：2010
• 出版时间：February 26, 2010
• 年：2010
• 卷：73
• 期：2
• 页码：229-232
• 全文大小：110K
• 年卷期：v.73,no.2(February 26, 2010)
• ISSN：1520-6025

文摘

Dendrobium huoshanense is a valued herbal plant used in traditional Chinese medicine. Fractionation of the water-soluble part of D. huoshanense by repeated chromatography culminated in the isolation of four new 6,8-di-C-glycosyl flavones (1−4), in addition to seven known compounds, comprising malic acid, dimethyl malate, N-phenylacetamide, isopentyl butyrate, salicylic acid, shikimic acid, and isoschaftoside. By detailed spectroscopic analysis, the structures of 1−4 were determined to have a core of apigenin bearing pentoside (arabinoside or xyloside) and rhamnosyl-hexoside (glucoside or galactoside) substituents.