对来自库明紫苑（Vernonia cumingiana）的三种新豆甾烷糖苷的1H和13C核磁共振光谱数据进行完整归属。

Complete assignments of 1H and 13C NMR spectroscopic data for three new stigmastane glycosides from Vernonia cumingiana.

作者信息

Suo Maorong, Yang Junshan

机构信息

Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100094, China.

出版信息

Magn Reson Chem. 2009 Feb;47(2):179-83. doi: 10.1002/mrc.2371.

DOI:10.1002/mrc.2371

PMID:19065575

Abstract

Three new steroidal saponins, Vernoniosides S1 (1), Vernoniosides S2 (2) and Vernoniosides S3 (3) were isolated from the stem of Vernonia cumingian. Their chemical structures were elucidated on the basis of MS, NMR spectroscopic and chemical analysis. Complete assignment of (1)H and (13)C NMR spectroscopic data were achieved by 1D and 2D NMR experiments (HMQC, HMBC, ROESY).

摘要

从库氏斑鸠菊的茎中分离出了三种新的甾体皂苷，即斑鸠菊苷S1（1）、斑鸠菊苷S2（2）和斑鸠菊苷S3（3）。基于质谱、核磁共振光谱和化学分析对它们的化学结构进行了阐明。通过一维和二维核磁共振实验（HMQC、HMBC、ROESY）完成了对1H和13C核磁共振光谱数据的全归属。