title: Triterpenoid derivatives from Cylicodiscus gabunensis.
abstract: Three new olean-12-ene derivatives (1-3), together with known urs-12-ene-3beta, 28-diol (4) were isolated from the stem root of Cylicodiscus gabunensis. The structures of the new compounds were established by chemical and spectroscopic means as beta-amyrin-n-nonyl ether (1), 22alpha-hydroxyolean-12-en-3beta-yl-beta-D-galactopyranoside (2), and 24-hydroxyolean-12-en-3beta-yl-beta-D-glucopyranoside (3).
authors.affiliation: Department of Organic Chemistry, Faculty of Sciences, University of Yaounde I, Yaounde, Cameroon.
authors.forename: Pierre
authors.initials: P
authors.lastname: Mkounga
authors.forename: Alembert Tchinda
authors.initials: AT
authors.lastname: Tiabou
authors.forename: Jacques
authors.initials: J
authors.lastname: Kouam
mesh_terms: D007887:Fabaceae / Q000737:chemistry*; D006868:Hydrolysis; D008968:Molecular Conformation; D010936:Plant Extracts / Q000737:chemistry* / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry*; D013237:Stereoisomerism; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D010936:Plant Extracts; D014315:Triterpenes