title: Studies on chemical constituents from Ilex pubescens.
abstract: Two new phenolic glycosides, ilexpubsides A and B, along with four known lignan glycosides were isolated from the roots of Ilex pubescens. By spectral evidence, the structures of the new compounds were elucidated as 4-O-beta-D-[6'-O-(4''-O-beta-D-glucopyranosylvanilloyl)glucopyranosyl] vanillic acid (1) and syringinic 6'-O-beta-D-xylopyranoside (2). The known compounds were identified to be liriodendrin (3), (-)-olivil (4), tortoside A (5) and (+)-cyclo-olivil (6). All compounds were first isolated from Ilex pubescens.
authors.affiliation: The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Southern Yangtze University, Wuxi 214036, China.
authors.forename: X
authors.initials: X
authors.lastname: Yang
authors.forename: Y
authors.initials: Y
authors.lastname: Ding
authors.forename: Z-H
authors.initials: ZH
authors.lastname: Sun
authors.forename: D-M
authors.initials: DM
authors.lastname: Zhang
mesh_terms: D002240:Carbohydrate Sequence; D006027:Glycosides / Q000737:chemistry; D030017:Ilex / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D018517:Plant Roots / Q000737:chemistry; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D014641:Vanillic Acid / Q000031:analogs & derivatives / Q000737:chemistry
chemical_list: D006027:Glycosides; C514647:ilexpubside A; C514648:ilexpubside B; D014641:Vanillic Acid