New sesquiterpenes from the roots of Ligularia dentata

被引:21
作者
Gao, K
Yang, L
Jia, ZJ
机构
[1] LANZHOU UNIV,DEPT CHEM,LANZHOU 730000,PEOPLES R CHINA
[2] LANZHOU UNIV,STATA KEY LAB APPL ORGAN CHEM,LANZHOU 730000,PEOPLES R CHINA
关键词
Ligularia dentata; Compositae; roots; sesquiterpenes; bisabolane;
D O I
10.1055/s-2006-957734
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Phytochemical investigation of the roots of Ligularia dentata has resulted in the isolation of three new bisabolane sesquiterpenes: 1 alpha,3 beta P,10,11-tetrahydroxy-2 alpha,5 alpha,8-triangeloyloxybisabola-(7)1 4-en-4-one (1), 1 alpha,3 beta,10-trihydroxy-11-methoxy-2 alpha,5 alpha,8-triangeloyloxybisabola-7(14) (2), and 1 alpha, 3 beta,10-trihydroxy-2 alpha,5 alpha,8-triangeloyloxybisabola-7(14),11(12)-dien-4-one (3). Their structures were elucidated with spectroscopic methods and 2D-NMR techniques as well as chemical transformations. In addition, three known phenolic norsesquiterpenes, liguhodgsonal (4), ligujapone (5), and 2-hydroxyplatyphyllide (6) have also been obtained.
引用
收藏
页码:461 / 463
页数:3
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