Morphinanes isomères originaux isolés de Stephaniazippeliana

Eight aporphinoids and six morphinans have been isolated from aerial parts of Stephaniazippeliana Miq. (Menispermaceae): four of them are new: (+)-erromangine 2, (+)-tannagine 3, (+)-zippeline 5, and (+)-zippelianine 6. The previously isolated alkaloids (+)-stephodeline 1, (+)-isostephodeline 4, and compounds 2 and 3 are isomeric. The structure of (+)-isostephodeline 4 has been revised. Keywords: Stephaniazippeliana, morphinans, alkaloids.