title: Alkaloids from Rauwolfia cubana Stem Bark.
abstract: Six indole alkaloids, tetrahydroalstonine, aricine, 16- EPI-affinine, ajmaline, amerovolfine, and amerovolficine have been isolated from the ethanolic extract of the stem bark of RAUWOLFIA CUBANA A. DC. Amerovolfine ( N(alpha)-demethylaccedine) and amerovolficine (16-demethoxy-carbonylpagicerine) are new alkaloids related to 16- EPI-affinine, and their structures have been determined by spectroscopic analysis.
authors.affiliation: Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Havana, San Làzaro y L, Ciudad de la Havana 4, Cuba.
authors.forename: J A
authors.initials: JA
authors.lastname: Martinez
authors.forename: C
authors.initials: C
authors.lastname: Gomez
authors.forename: T
authors.initials: T
authors.lastname: Santana
authors.forename: H
authors.initials: H
authors.lastname: Velez