SESQUITERPENE LACTONES FROM XANTHIUM-PUNGENS

被引：59

作者：

AHMED, AA ^{[1
]}

JAKUPOVIC, J ^{[1
]}

BOHLMANN, F ^{[1
]}

REGAILA, HA ^{[1
]}

AHMED, AM ^{[1
]}

机构：

[1] TECH UNIV BERLIN,INST ORGAN CHEM,W-1000 BERLIN 12,GERMANY

来源：

PHYTOCHEMISTRY | 1990年 / 29卷 / 07期

关键词：

Compositae; dihydroxanthanolide epoxide; dimeric xanthanolides; endoperoxide; rearranged xanthanolide; sesquiterpene acid; sesquiterpene lactones; Xanthium pungens;

D O I：

10.1016/0031-9422(90)83040-8

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The aerial parts of Xanthium pungens, collected near El-Minia, Egypt, afforded, in addition to several known sesquiterpene lactones and some other compounds, a lactone with a new carbon skeleton, two dimeric sesquiterpene lactones, an endoperoxide, an 11,13-dihydroxanthanolide and a further sesquiterpene acid. The structures were elucidated by highfield NMR techniques. The structure of the pentacyclic lactone was confirmed by partial synthesis from 8-epixanthatin. © 1990.

引用

页码：2211 / 2215

页数：5

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