Bisrubescensins A-C:: Three new dimeric ent-kauranoids isolated from Isodon rubescens

被引:52
作者
Huang, SX [1 ]
Xiao, WL
Li, LM
Li, SH
Zhou, Y
Ding, LS
Lou, LG
Sun, HD
机构
[1] Chinese Acad Sci, Kunming Inst Bot, State Key Lab Phytochem & Plant Resources W China, Kunming 650204, Peoples R China
[2] Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China
[3] Chinese Acad Sci, Shanghai Inst Biol Sci, Shanghai Inst Mat Med, Shanghai 200032, Peoples R China
关键词
D O I
10.1021/ol0531379
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A phytochemical study of the secondary metabolites produced by the species of Isodon rubescens has led to the isolation of three new dimeric ent-kauranoids and two known ones. The most important of these compounds are bisrubescensin A (1), which contains an unprecedented C-23 ent-kaurane unit, and bisrubescensin C (3), which is the precursor of bisrubescensin B (2) from the viewpoint of biosynthesis. Their structures were determined on the basis of extensive spectroscopic analysis and chemical evidence.
引用
收藏
页码:1157 / 1160
页数:4
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