NATURALLY OCCURRING TERPENE DERIVATIVES .179. NEW MELAMPOLIDES AND CIS, CIS-GERMACRANOLIDES FROM SPECIES OF THE SUBTRIBE MELAMPODIINAE

被引：39

作者：

BOHLMANN, F ^{[1
]}

JAKUPOVIC, J ^{[1
]}

ZDERO, C ^{[1
]}

KING, RM ^{[1
]}

ROBINSON, H ^{[1
]}

机构：

[1] SMITHSONIAN INST, WASHINGTON, DC 20560 USA

来源：

PHYTOCHEMISTRY | 1979年 / 18卷 / 04期

关键词：

D O I：

10.1016/S0031-9422(00)84273-9

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 investigation of 4 South American spp. [Acanthospermum hispidum, Siegesbeckia jorullensis, Smallanthus reparius and Smallanthus siegesbeckia] of the tribe Heliantheae yielded known compounds and 14 new sesquiterpene lactones. Most belonged to the melampolides but 4 were further examples of cis,cis-germacranolides. The stereochemistry was established by intensive 1H-NMR studies and some chemical transformations. Some new lactones were only obtainable as inseparable mixtures of 2-methylbutyric and isovaleric esters. A new acetylenic aldehyde was isolated. The chemotaxonomic situation was discussed with regard to the position of the genus Smallanthus.

引用

页码：625 / 630

页数：6

共 34 条

[1] NATURALLY OCCURRING TERPENE DERIVATIVES .68. NEW CONSTITUENTS OF GENUS ANTHEMIS [J].