title: Rhusemialins A-C, new cyclolignan esters from the roots of Rhus javanica var. roxburghiana.
abstract: Three new cyclolignan esters and seven known compounds including two cyclolignan isolariciresinol, lynoiresinol, and five aromatic compounds methyl ferulate, vanillin, 4-hydroxy-3,5-dimethoxybenaldehyde, 4-methoxygallic acid, gallic acid were isolated from n-butanol extract of Rhus semialata (Anacardiaceae). The structural elucidations of rhusemialins A (1), B (2), and C (3) were based on FAB-MS, 1D and 2D NMR spectra.
authors.affiliation: Department of Chemistry, National Taiwan University, Taipei 106, Taiwan. yhkuo@ccms.ntu.edu.tw
authors.forename: Ming-An
authors.initials: MA
authors.lastname: Ouyang
authors.forename: Yung-Shung
authors.initials: YS
authors.lastname: Wein
authors.forename: Ren-Kuan
authors.initials: RK
authors.lastname: Su
authors.forename: Yueh-Hsiung
authors.initials: YH
authors.lastname: Kuo
mesh_terms: D002109:Caffeic Acids / Q000737:chemistry* / Q000302:isolation & purification; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification; D006868:Hydrolysis; D017705:Lignans / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D010936:Plant Extracts / Q000032:analysis; D018517:Plant Roots / Q000737:chemistry; D029045:Rhus / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
chemical_list: D002109:Caffeic Acids; D005960:Glucosides; D017705:Lignans; D010936:Plant Extracts; C520864:lynoirersinol-4-O-glucopyranosyl-6''-O-feruloyl ester; C520866:lynoiresinol-4-O-glucopyranosyl-4'',6''-O-diferuloyl ester; C520865:lyoniresinol-9'-O-caffeoyl ester