title: Phenolic constituents from Drypetes armoracia.
abstract: The methanol extract of the dried stem bark of Drypetes armoracia Pax & Hoffm. afforded two compounds named drypearmoracein A, (E)-4,5,6,7-tetrahydroxy-2-benzylhept-2-enoic acid and drypearmoracein B, 2,3-dihydroxy-9,10-tetrahydroanthra-1,4-quinone along with five known compounds: friedelan-3 beta-ol, friedelin, friedelane-3,7-dione, drypemolundein B and beta-stigmasterol. Their structures were established on the basis of spectroscopic analysis and chemical evidence.
authors.affiliation: Department of Organic Chemistry, University of Yaoundé-1, Faculty of Science, P.O. Box 812 Yaoundé, Cameroon. jeanwandji@yahoo.fr
authors.forename: Jean
authors.initials: J
authors.lastname: Wandji
authors.forename: François
authors.initials: F
authors.lastname: Tillequin
authors.forename: Dulcie A
authors.initials: DA
authors.lastname: Mulholland
authors.forename: Agathe D
authors.initials: AD
authors.lastname: Temgoua
authors.forename: Jean-D
authors.initials: JD
authors.lastname: Wansi
authors.forename: Elisabeth
authors.initials: E
authors.lastname: Seguin
authors.forename: Z Tanee
authors.initials: ZT
authors.lastname: Fomum
mesh_terms: D002264:Carboxylic Acids / Q000737:chemistry / Q000302:isolation & purification*; D019665:Euphorbiaceae / Q000737:chemistry*; D007783:Lactones / Q000302:isolation & purification; D010636:Phenols / Q000737:chemistry* / Q000302:isolation & purification*; D024301:Plant Bark / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry; D011809:Quinones / Q000737:chemistry / Q000302:isolation & purification*; D012717:Sesquiterpenes / Q000302:isolation & purification; D013057:Spectrum Analysis / Q000379:methods; D013265:Stigmasterol / Q000302:isolation & purification; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D002264:Carboxylic Acids; D007783:Lactones; D010636:Phenols; D011809:Quinones; D012717:Sesquiterpenes; D014315:Triterpenes; C419050:drypemolundein B; D013265:Stigmasterol