title: New steroidal alkaloids from Solanum hypomalacophyllum.
abstract: Two new steroidal alkaloids (1-2) have been isolated from the leaves and roots of Solanum hypomalacophyllum Bitter, respectively. Their structures have been elucidated as deacetoxysolaphyllidine-3-O-beta-D-glucopyranoside (1) and 4-keto-5,6-dihydro-(20S)-verazine (2). Furthermore, two known steroidal alkaloids, 20R-verazine and 20S-verazine, and the common secondary metabolites oleanolic acid and beta-sitosterol were isolated from the roots, whereas deacetoxysolaphyllidine was obtained from the leaves.
authors.affiliation: Laboratoire de Pharmacognosie, UMIB, EA 3660, Faculté de Pharmacie, Université de Bourgogne, 7 Bd Jeanne d'Arc, 21079 Dijon Cedex, France.
authors.forename: Alida
authors.initials: A
authors.lastname: Pérez Colmenares
authors.forename: Libia
authors.initials: L
authors.lastname: Alarcón
authors.forename: Luis B
authors.initials: LB
authors.lastname: Rojas
authors.forename: Anne-Claire
authors.initials: AC
authors.lastname: Mitaine-Offer
authors.forename: Laurent
authors.initials: L
authors.lastname: Pouységu
authors.forename: Stéphane
authors.initials: S
authors.lastname: Quideau
authors.forename: Thomas
authors.initials: T
authors.lastname: Paululat
authors.forename: Alfredo
authors.initials: A
authors.lastname: Usubillaga
authors.forename: Marie-Aleth
authors.initials: MA
authors.lastname: Lacaille-Dubois
mesh_terms: D000470:Alkaloids / Q000737:chemistry*; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D032322:Solanum / Q000737:chemistry*
chemical_list: D000470:Alkaloids