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Planta Med 1981; 41(2): 143-149
DOI: 10.1055/s-2007-971691
Research Articles

© Hippokrates Verlag Stuttgart

Inhaltsstoffe von Aristolochia triangularis*

Constituents of Aristolochia triangularis*G. Rücker1 , B. Langmann1 , N. S. de Siqueira2
  • 1Institut für Pharmazeutische Chemie der Westfälischen Wilhelms-Universität Münster
  • 2Faculdada de Farmacia Universidade Federal do Rio Grande do Sul, Porto Alegre, Brasilien
* Aus der Dissertation B. Langmann, Münster 1979.
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Publication History

Publication Date:
29 March 2007 (online)

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Abstract

The roots and stems of Aristolochia triangularis CHAMISSO, a woody climber growing in Brasil, contain fatty acids as well as (-)-kaur-16-en-18-acid, but no aristolochic acids. The following stigmastane type triterpenes have been isolated: stigmast-4-en-3-on, stigmastan-3,6-dion and stigmast -4-en-3,6-dion as well as kaurane diterpenes: (-)-kaur-16-en, (-), kaur-16-en-18-al, (-)-kauran-16α-ol-18-al, (-)-16α, 17-epoxykauran, (-)-kaur- 16 - en-18-ol and (-)-kaur-15-en-17-ol. In addition sesquiterpenes have been found: (-)-α-ylangen, (-)-α-copaen, (E)-β-elemen, γ-elemen, (E)-(R)-Nerolidol. The lignanes isolated from A. triangularis include cubebin, found so far only in Piper cubeba, and galbacin. The new lignans 3,4-dimethoxy-3,4-desmethylendioxycubebin and 3′,4′-dimethoxy-3′,4′-desmethylendioxycubebin have been identified. For better interpretation of the 1H-NMR-spectra in relation to the stereochemistry, the 6,6′-dinitro derivates are suitable.

Key Word Index

Aristolochia triangularis - Aristolochiaceae - Lignanes - Kaurans - Sesquiterpenoids - Triterpenoids

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