title: Alangionosides G-M: glycosides of megastigmane derivatives from the leaves of Alangium premnifolium.
abstract: Phytochemical investigation of the 1-BuOH-soluble fraction of the MeOH extract of Alangium premnifolium resulted in the isolation of ten megastigmane glycosides, of which, two, (6R,9R)-3-oxo-alpha-ionol apiofuranosylglucopyranoside and roseoside with (6S,9R)-blumeol A as an aglycone were known. The structures of the eight new compounds were determined by spectroscopic methods.
authors.affiliation: Institute of Pharmaceutical Sciences, Hiroshima University School of Medicine, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Otsuka
authors.forename: M
authors.initials: M
authors.lastname: Yao
authors.forename: K
authors.initials: K
authors.lastname: Kamada
authors.forename: Y
authors.initials: Y
authors.lastname: Takeda
mesh_terms: D003510:Cyclohexanes / Q000737:chemistry* / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D010936:Plant Extracts / Q000737:chemistry* / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry; D013237:Stereoisomerism
chemical_list: D003510:Cyclohexanes; D006027:Glycosides; D010936:Plant Extracts