title: Ursene type nortriterpene from Debregeasia salicifolia.
abstract: A new triterpene, 3beta-19alpha-dihydroxy-30-norurs-12-ene (1), has been isolated from the methanolic extract of Debregeasia salicifolia stems. Its structure has been elucidated with the help of one- and two-dimensional NMR and NOE studies. Lupeol, beta-sitosterol, stigmasterol and oleanolic acid are also reported for the first time from this species.
authors.affiliation: H.E.J. Research Institute of Chemistry, University of Karachi, -75270, Karachi, Pakista.
authors.forename: E
authors.initials: E
authors.lastname: Akbar
authors.forename: M
authors.initials: M
authors.lastname: Riaz
authors.forename: A
authors.initials: A
authors.lastname: Malik
mesh_terms: D006801:Humans; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification; D010946:Plants, Medicinal; D019685:Rosales; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: C431918:3,19-dihydroxy-30-norurs-12-ene; D010936:Plant Extracts; D014315:Triterpenes