简介: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 (HS简介: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 110 mg of the partially purified extract, 28 mg 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.详细>