Three New C21 Steroidal Glycosides from Roots of Cynanchum otophyllum
Article
Figures
Metrics
Preview PDF
Reference
Related
Cited by
Materials
摘要:
Abstract:
Objective To investigate the chemical structures of glycosides in the roots of Cynanchum otophyllum (Asclepiadaceae) and to find new glycosides. Methods The total glycosides in the roots of C. olophyllum were separated by silica gel column chromatography. The structures of the resulting compounds were determined by NMR and FAB-MS spectra. Results Three C21 steroidal glycosides were separated. Their structures were determined as caudatin 3-O-(4-O-methyl-β-D-cymaropyranosyl)- (1→4)-α-D-oleandropyranosyl-(1→4)-β-D-glucopyranosyl-(1→4)-α-L-rhamnopyranoside(1), caudatin 3-O-β-D-digitoxopyranosyl-(1→4)-α-D-oleandropyranosyl-(1→4)-β-D- diginopyranosyl-(1→4)-β-D-glucopyranoside (2), and caudatin 3-O-β-D-digino- pyranosyl-(1→4)-α-D-oleandropyranosyl-(1→4)-α-D-oleandropyranosyl-(1→4)-β-D-glucopyranoside (3), respectively. Conclusion Glycosides 1?3 are new compounds.
关键词:
Keywords:
Project Supported:
National Natural Science Foundation of China (30572322); Natural Science Foundation of Yunnan Province (2005C0036Q)
Yi-bin Zhao, Yue-mao Shen, Hong-ping He, Zhi-zhi Du, Quan-zhang Mu, Xiao-jiang Hao. Three New C21 Steroidal Glycosides from Roots of Cynanchum otophyllum[J]. Chinese Herbal Medicines (CHM),2016,8(2):189-194