Loline (=festucine, I),' norloline (II),la lolinine (III),lb and decorticasine (IV)2 have been isolated from three genera of the families Gramineae and Leguminosae.
Absolute configuration of the pyrrolizidine alkaloid acetylgynuramine
✍ Scribed by Helmut Wiedenfeld; Armin Kirfel; Erhard Röder; Georg Will
- Book ID
- 107842443
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 240 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0031-9422
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The absolute configuration of the pavine alkaloid (-)-argemonine (13 was firmly determined by chemical degradation,2 and through a non-empirical analysis of the cd spectrum. 3 The results of an empirical ord study were also interpreted as leading to the absolute configuration depicted. 4
The rhoeadine alkaloids are dextrorotatory bases found only in Papaver species (Papaveraceae); three typical examples being (+)-glaudine, (+)-epiglaudine and (+)-oreodine.2 The relative stereochemistry at C-l and C-2 was obtained from nmr coupling constants,