Stem Bark Alkaloids of Rauwolfia volkensii
- 1 December 1979
- journal article
- research article
- Published by Georg Thieme Verlag KG in Planta Medica
- Vol. 37 (12) , 361-366
- https://doi.org/10.1055/s-0028-1097350
Abstract
Seventeen alkaloids were isolated and identified from Rauwolfia volkensii stem bark. Geissoschizine was the only E–seco indole alkaloid isolated. Four sarpagan alkaloids (preperakine –O–acetyl (a new alkaloid), polyneuridine, normacusine B, normacusine B–O–acetyl), three dihydroindoles (nortetraphyllicine, tetraphyllicine, ajmaline), four heteroyohimbines (tetrahydroalstonine, aricine, isoreserpiline, reserpiline) and two yohimbines (α – yohimbine, yohimbine) were found together with peraksine, the oxindole carapanaubine and the anhydronium base alstonine. The inter–relationship of these alkaloids has been discussed.Keywords
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