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Journal ArticleDOI

Sesquiterpene lactones, geranylnerol and tremetone derivatives from Ageratina species

TL;DR: The investigation of two further Ageratina species afforded, in addition to known compounds, some new ones, including a germacrolide, a heliangolide and a guaianolide.
About: This article is published in Phytochemistry.The article was published on 1985-01-01. It has received 15 citations till now. The article focuses on the topics: Tremetone & Germacranolide.
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Book
27 Apr 2001
TL;DR: The Flavonoids as Indicators of the Evolutionary Process and Hybridization and Introgression and Flavonoid Relationships with other Families.
Abstract: Section I. Introduction to the Sunflower Family.- 1. Biology and Distribution.- 2. Classification, Phylogeny and Biogeography.- Section II. Introduction to the Flavonoids.- 3. The Use of Flavonoids as Taxonomic Markers.- 4. Structural Variation of the Flavonoids of Asteraceae.- 5. Biosynthesis of Flavonoids.- 6. Biological Functions of Flavonoids.- Section III. Flavonoid Data.- 7. Flavonoids of Anthemideae.- 8. Flavonoids of Astereae.- 9. Flavonoids of Calenduleae and Cardueae.- 10. Flavonoids of Eupatorieae.- 11. Flavonoids of Heliantheae s.l.- 12. Flavonoids of Inuleae s.l.- 13. Flavonoids of Lactuceae.- 14. Flavonoids of Mutisieae and Barnadesioideae.- 15. Flavonoids of Senecioneae.- 16. Flavonoids of Tageteae.- 17. Flavonoids of Vernonieae and Liabeae.- Section IV. Efficacy of Flavonoids at Different Taxonomic Levels.- 18. Flavonoids at the Subfamilial Level.- 19. Flavonoids at the Tribal Level.- 20. Flavonoids at the Subtribal Level.- 21. Flavonoids at the Generic Level.- 22. Flavonoids at the Specific Level.- 23. Flavonoids at Infraspecific Levels.- Section V. Flavonoids as Indicators of the Evolutionary Process.- 24. Flavonoids and Populational Variation.- 25. Flavonoids and Hybridization and Introgression.- Section VI. Flavonoids and Phylogeny.- 26. Flavonoid Relationships with other Families.- 27. Evolution of the Flavonoid System in Asteraceae.- Addendum.- References.- Common Names of Flavonoids Used in This Book and Their Equivalents.- Chemical Index.- Taxon Index.

164 citations

Journal ArticleDOI
TL;DR: Results obtained with extracts from 53 Bolivian medicinal plants used for other diseases and from 43 plants collected with basis of chemotaxonomic criteria from all parts of Bolivia are included.

145 citations

Journal ArticleDOI
TL;DR: The aerial parts of Ageratina anisochroma gave several thymol derivatives including five new ones, a hydroxypiperitol glucoside, some substituted benzyl benzoates and several germacranolides related to provincialin this paper.

26 citations

Journal ArticleDOI
TL;DR: The reinvestigation of the roots and aerial parts of Ageratina riparia afforded ten new chromenes, their structures being determined by spectral data and chemical transfomrations.

15 citations

Journal ArticleDOI
TL;DR: One known and four new germacranolide-type sesquiterpene lactones were obtained from the dichloromethane extract of Chromolaena opadoclinia as mentioned in this paper.

13 citations

References
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Journal ArticleDOI
TL;DR: The aerial parts of two Gaillardia species afforded in addition to known sesquiterpene lactones 23 new pseudoguaianolides, two dugaldiolide derivatives and two seco-neopulchellin derivatives.

269 citations

Journal ArticleDOI
TL;DR: In this article, the results of an investigation of six Mexican species of the old genus Eupatorium which are now placed in the genera Ageratina, Critonia and Fleischmannia, yields two new sesquiterpenic acids (12 and 16), a cadinane derivative (40) and three sesiquiterpene lactones (41, 57 and 58).
Abstract: Die Untersuchung von sechs mexikanischen Arten der alten Gattung Eupatorium, die jetzt in die Gattungen Ageratina, Critonia und Fleischmannia eingeordnet werden, ergibt zwei neue Sesquiterpensauren (12 und 16), ein Cadinan-Derivat (40) und drei Sesquiterpenlactone (41, 57 und 58). Auserdem werden neben bereits bekannten Verbindungen elf neue Thymolderivate (3–10 und 46–48), vier p-Hydroxyacetophenon-Derivate (21, 26, 30 und 45), drei Benzoesaurebenzylester (35–37), ein Flavanon (54) und ein Lignan (60) isoliert. Die Konstitutionen werden durch spektroskopische Daten sowie durch einige chemische Reaktionen geklart. Die chemotaxonomischen Aspekte werden diskutiert. Naturally Occurring Terpene Derivatives, 76. On Constituents of the Eupatorium Group The investigation of six Mexican species of the old genus Eupatorium which are now placed in the genera Ageratina, Critonia and Fleischmannia, yields two new sesquiterpenic acids (12 and 16), a cadinane derivative (40) and three sesquiterpene lactones (41, 57 and 58). In addition besides already known compounds eleven new thymol derivatives (3–10 and 46–48), four p-hydroxy-acetophenone derivatives (21, 26, 30 and 45), three benzyl benzoates (35–37), a flavanone (54) and a lignan (60) are isolated. The structures are established by spectroscopic data as well as by some chemical reactions. The chemotaxonomical aspects are discussed.

114 citations

Journal ArticleDOI
TL;DR: The investigation of twelve further species of the Eupatorium complex affords four new germacrolides and seven guaianolides together with new thymol and p-hydroxyacetophenone derivatives as discussed by the authors.

86 citations

Journal ArticleDOI
TL;DR: In this article, the authors investigated further species of the Eupatorieae genus and provided new diterpenic acids, three euparine derivatives, two chromenes and two guaianolides closely related to known structures.

47 citations