节点文献

Isolation and Identification of Seco-pregnane-type Steroids from Cynanchum ascyrifolium

免费订阅

【作者】 Meiling FANXiaohong LIUWenxi CHUBinghua GUOKun LIUWei WANG

【Author】 Meiling FAN;Xiaohong LIU;Wenxi CHU;Binghua GUO;Kun LIU;Wei WANG;College of Pharmacy,Qingdao University;

【机构】 College of Pharmacy,Qingdao University

【摘要】 [Objective] To investigate the chemical constituents from the ethanol extracts of Cynanchum ascyrifolium. [Methods] The compounds were isolated and purified by ODS,macroporous resin chromatography,preparative HPLC methods and so on. Their structures were elucidated by their physical properties,mass spectrometry,and nuclear magnetic resonance spectrum.[Results]Four seco-pregnane-type steroids were isolated from the ethanol extracts of C. ascyrifolium; they were identified to be glaucogenin-A( 1),glaucogenin-C 3-O-β-D-thevetoside( 2),glaucogenin-C 3-O-β-D-oleandropyranoside( cynatratoside-A,3),and glaucogenin-A 3-O-β-D-digitoxopyranosyl-( 1 →4)-β-D-cymaropyranoside( cynanversicoside F or sublanceoside B2,4).[Conclusions] The four compounds were obtained from C. ascyrifolium for the first time.

【基金】 Supported by the National Natural Science Foundation of China(No.81273396)
【所属期刊栏目】 Chemical Composition of Natural Medicine (2014年10期)
  • 【分类号】R284
  • 【下载频次】35
节点文献中: 

本文链接的文献网络图示:

浏览历史:
下载历史: