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Two new triterpene lactones from the stems of Kadsura polysperma
被引:14
|作者:
Jia, Zhengwei
[1
]
Lu, Yan
[1
]
Liao, Zhixin
[1
]
Chen, Daofeng
[1
]
机构:
[1] Fudan Univ, Dept Pharmacognosy, Sch Pharm, Shanghai 200032, Peoples R China
关键词:
D O I:
10.1002/hlca.200790124
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Two new triterpene lactones, polysperlactones A (2) and B (3), were isolated from the stems of Kadsura polysperma, together with the known compounds heteroclitalactone D (1) and schisanlactone E (4). Their structures were elucidated by spectroscopic methods, including 2D-NMR and HR-MS techniques. The configuration of 1 was confirmed by X-ray analysis. Compounds 2 and 3 are members of a rare class of 3,4-secolanostane metabolites with ring-expanded or cyclized structures, respectively.
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页码:1236 / 1243
页数:8
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