title: A new homostilbene and two new homoisoflavones from the bulbs of Scilla scilloides.
abstract: A new homostilbene, named scillabene A (2), and two new homoisoflavones, named scillavones A (3) and B (4), were isolated from the bulbs of Scilla scilloides DRUCE (Liliaceae) along with 13 known compounds comprising a homostilbene, seven homoisoflavones, a xanthone, a lignan, and three nortriterpenes. The structures of 2-4 were characterized as 3,5,4'-trihydroxy-3'-methoxy-4-methyl-trans-stilbene, (3R)-5,7,2'-trihydroxy-3',4'-dimethoxyspiro{2H-1-benzopyran-7'-bicyclo[4,2,0]octa[1,3,5]-trien}-4-one and (3S)-3-(3,4-dihydroxybenzyl)-5-hydroxy-6,7-dimethoxychroman-4-one, respectively, on the basis of spectroscopic data and X-ray crystallographic analysis.
authors.affiliation: Aso Pharmaceutical Co Ltd, Kumamoto, Japan.
authors.forename: Yoichiro
authors.initials: Y
authors.lastname: Nishida
authors.forename: Masashi
authors.initials: M
authors.lastname: Eto
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Miyashita
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Ikeda
authors.forename: Koki
authors.initials: K
authors.lastname: Yamaguchi
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Yoshimitsu
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Nohara
authors.forename: Masateru
authors.initials: M
authors.lastname: Ono
mesh_terms: D007529:Isoflavones / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D031445:Scilla / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization; D013267:Stilbenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D007529:Isoflavones; D013267:Stilbenes; C530554:scillabene A; C530555:scillavone A; C530556:scillavone B