title: Myrsinionosides A-E: megastigmane glycosides from the leaves of Myrsine seguinii Lev.
abstract: Eight megastigmane glycosides were isolated from the leaves of Myrsine seguinii collected in Okinawa. Three of them were found to be known compounds, i.e., ampelopsisionoside, alangionoside J, and linarionoside A. The structures of the new megastigmane glycosides were elucidated from the spectroscopic data and their absolute stereochemistries were determined in detail using a modified Mosher's method.
authors.affiliation: Institute of Pharmaceutical Sciences, Hiroshima University Faculty of Medicine, Japan. hide@pharm.hiroshima-u.ac.jp
authors.forename: H
authors.initials: H
authors.lastname: Otsuka
authors.forename: X N
authors.initials: XN
authors.lastname: Zhong
authors.forename: E
authors.initials: E
authors.lastname: Hirata
authors.forename: T
authors.initials: T
authors.lastname: Shinzato
authors.forename: Y
authors.initials: Y
authors.lastname: Takeda
mesh_terms: D000107:Acetylation; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D006868:Hydrolysis; D009682:Magnetic Resonance Spectroscopy; D010936:Plant Extracts; D018515:Plant Leaves / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D012997:Solvents; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013055:Spectrophotometry, Infrared
chemical_list: D006027:Glycosides; D010936:Plant Extracts; D012997:Solvents