title: A new arbutin derivative from the herb of Myrothamnus flabellifolia Welw.
abstract: The ethyl acetate soluble fraction of an acetone/water extract of the air-dried aerial parts from Myrothamnus flabellifolia Welw. (Myrothamnaceae) was fractionated by a combination of CC on Sephadex LH-20, MPLC on RP-18 material and LPLC on MCI-gel. This procedure has led to the isolation of 2,3-di-O-galloylarbutin, a new representative of the rare 2,3-diacylated glucopyranosides. The structure was elucidated with the help of 2D-NMR and ESI-MS experiments. Conformation of D-glucose was established by CZE (capillary zone electrophoresis).
authors: Institute of Pharmaceutical Biology and Phytochemistry, Westfaelische Wilhelms-University, Münster, Germany.
authors: C
authors: C
authors: Engelhardt
authors: F
authors: F
authors: Petereit
authors: J
authors: J
authors: Anke
authors: A
authors: A
authors: Hensel
mesh_terms: D002853:Chromatography, Liquid; D002855:Chromatography, Thin Layer; D019075:Electrophoresis, Capillary; D009682:Magnetic Resonance Spectroscopy; D019684:Magnoliopsida / Q000737:chemistry*; D018384:Oxidative Stress / Q000187:drug effects; D021241:Spectrometry, Mass, Electrospray Ionization