title: Flavonoids of Ochna afzelii.
abstract: Fractionation of the methanolic extract of Ochna afzelii stem bark has resulted in the isolation of two biflavonoids afzelones A and B along with five known flavonoids, calodenins A and B, afzelone C, 4',5-dimethoxy-6,7-methylenedioxyisoflavone, 4',5,7-trimethoxyisoflavone and the glucoside lanceoloside A. Their structures were determined using spectroscopic and chemical methods.
authors.affiliation: Department of Organic Chemistry, Faculty of Sciences, University of Yaounde I, PO Box 812, Yaounde, Cameroon.
authors.forename: Dieudonné Emmanuel
authors.initials: DE
authors.lastname: Pegnyemb
authors.forename: Raphael Ghogomu
authors.initials: RG
authors.lastname: Tih
authors.forename: Beibam Lucas
authors.initials: BL
authors.lastname: Sondengam
authors.forename: Alain
authors.initials: A
authors.lastname: Blond
authors.forename: Bernard
authors.initials: B
authors.lastname: Bodo
mesh_terms: D027901:Acanthaceae / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D024301:Plant Bark / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry
chemical_list: D005419:Flavonoids