A.-C. MitaineK. MesbahBernard RichardChristian PetermannS. ArrazolaChristian MorettiMonique Zèches-HanrotLouisette Le Men‐Olivier2026-03-222026-03-22199610.1055/s-2006-957939https://doi.org/10.1055/s-2006-957939https://andeanlibrary.org/handle/123456789/48464Citaciones: 16Two 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, kopsinine, 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.enAspidospermaTraditional medicineChemistryStereochemistryarticle