Rhusemialins A-C, new cyclolignan esters from the roots of Rhus javanica var. roxburghiana.
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.
Ouyang
Ming-An
MA
Department of Chemistry, National Taiwan University, Taipei 106, Taiwan. yhkuo@ccms.ntu.edu.tw
Wein
Yung-Shung
YS
Su
Ren-Kuan
RK
Kuo
Yueh-Hsiung
YH
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
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