Preparative isolation and purification of syringin and edgeworoside C from Edgeworthia chrysantha Lindl by high-speed counter-current chromatography

J Chromatogr A. 2004 Jul 23;1043(2):329-32. doi: 10.1016/j.chroma.2004.05.087.

Abstract

The bioactive compound syringin along with edgeworoside C were separated from the n-butanol extract of the stems and barks of Edgeworthia chrysantha Lindl (E. papyrifera) by high-speed counter-current chromatography (HSCCC) while it was difficult to purify each compound by silica gel column chromatography. Syringin was isolated from this plant for the first time. The two-phase solvent system used was composed of ethyl acetate-ethanol-water at an optimized volume ratio of 15:1:15 (v/v/v). Preparative HSCCC yielded, from 110mg of the partially purified extract, 28mg of syringin and 45 mg edgeworoside C each at over 96% purity by high-performance liquid chromatography analysis. Their structures were identified by electron impact ionization MS, 1H NMR and 13C NMR.

MeSH terms

  • Coumarins / isolation & purification*
  • Countercurrent Distribution / methods*
  • Glucosides / isolation & purification*
  • Magnetic Resonance Spectroscopy
  • Monosaccharides / isolation & purification*
  • Phenylpropionates / isolation & purification*
  • Thymelaeaceae / chemistry*

Substances

  • Coumarins
  • Glucosides
  • Monosaccharides
  • Phenylpropionates
  • edgeworoside C
  • syringin