title: Alkaloids from Aspidosperma species from Bolivia.
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, 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.
authors.affiliation: Faculté de Pharmacie (U.R.A. au C.N.R. S. no 492), 51, rue Cognacq-Jay, F-51096 Reims Cedex, France.
authors.forename: A C
authors.initials: AC
authors.lastname: Mitaine
authors.forename: K
authors.initials: K
authors.lastname: Mesbah
authors.forename: B
authors.initials: B
authors.lastname: Richard
authors.forename: C
authors.initials: C
authors.lastname: Petermann
authors.forename: S
authors.initials: S
authors.lastname: Arrazola
authors.forename: C
authors.initials: C
authors.lastname: Moretti
authors.forename: M
authors.initials: M
authors.lastname: Zèches-Hanrot
authors.forename: L L
authors.initials: LL
authors.lastname: Men-Olivier