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Six New Steroidal Saponins from Helleborus thibetanus
被引:12
|作者:
Zhang, Hui
[1
]
Su, Yan-Fang
[1
]
Yang, Feng-Ying
[1
]
Zhao, Ze-Qing
[1
]
Gao, Xiu-Mei
[2
]
机构:
[1] Tianjin Univ, Tianjin Key Lab Modern Drug Delivery & High Effic, Sch Pharmaceut Sci & Technol, Tianjin 300072, Peoples R China
[2] Tianjin Univ Tradit Chinese Med, Tianjin Key Lab TCM Chem & Anal, Tianjin 300193, Peoples R China
关键词:
SPIROSTANOL GLYCOSIDES;
RHIZOMES;
ORIENTALIS;
CAUCASICUS;
D O I:
10.1002/hlca.201400080
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Six steroidal saponins, including five spirostanol glycosides, 1-5, and one furostanol glycoside 1-sulfonate, 6, previously unknown in nature, together with three known compounds, 7-9, were isolated from dried roots and rhizomes of Helleborus thibetanus. Their structures were elucidated by extensive 1D- and 2D-NMR experiments, along with IR and HR-ESI-MS data, as well as the results of acid hydrolysis. Compounds 1-5 possessed a C(25)=C(27) bond and were glycosylated at HO=C(1), which was unusual in steroidal saponins.
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页码:1652 / 1665
页数:14
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