Abstract
Two Bolivian Aspidosperma species were investigated. The seed and stem bark of Aspidosperma macrocarpon Mart. contain six known alkaloids: (-)-vincadifformine, ervinceine, kopsanone, kopsinine,
kopsanol in the seed, and kopsanone, kop-sinine, kopsanol, 18-epikopsanol in the stem
bark. The stem bark of Aspidosperma pyrifolium Mart. contains eleven known alkaloids: (-)-vincadifformine, O-demethylpalosine, haplocine, N-formylaspidospermidine, vallesine, demethoxyaspidospermine, palosine, (-)-aspidospermine,
aspidospermidine, akuammicine, tubotaiwine, beside the two new bases dehydroxyhaplocidine
and 10-methoxyaspidospermidine.
Key words
Aspidosperma macrocarpon
-
A. pyrifolium
- Apocynaceae - indole alkaloids
