title: Quassinoids from Eurycoma harmandiana.
abstract: Three quassinoids, iandonosides A and B and iandonone, were isolated from the root of Eurycoma harmandiana, along with five known quassinoids, casteloside B, 13 beta, 21-dihydroeurycomanone, chaparrinone, glaucarubolone and ailanquassin B as well as the coumarin, scopoletin. The structural elucidations were based on analyses of spectroscopic data.
authors.affiliation: Institute of Pharmaceutical Sciences, Faculty of Medicine, Hiroshima University, 1-2-3 Kasumi, Minami-ku, 734-8551, Hiroshima, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Kanchanapoom
authors.forename: R
authors.initials: R
authors.lastname: Kasai
authors.forename: P
authors.initials: P
authors.lastname: Chumsri
authors.forename: K
authors.initials: K
authors.lastname: Yamasaki
mesh_terms: D002851:Chromatography, High Pressure Liquid; D006576:Heterocyclic Compounds, 4 or More Rings / Q000737:chemistry / Q000302:isolation & purification*; D006572:Heterocyclic Compounds, Bridged-Ring / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D018517:Plant Roots / Q000737:chemistry; D010944:Plants / Q000737:chemistry*; D012603:Scopoletin / Q000302:isolation & purification; D016339:Spectrometry, Mass, Fast Atom Bombardment
chemical_list: D006576:Heterocyclic Compounds, 4 or More Rings; D006572:Heterocyclic Compounds, Bridged-Ring; D012603:Scopoletin