11 rezultatus
Callus cultures of Epimedium diphyllum produced a large amount of epimedoside A in addition to a small amount of diphylloside B, ikarisoside C, epimedoside E, diglycosides of des-O-methylanhydroicaritin (8-gamma, gamma-dimethylallylkaempfero). Icariin, epimedins A-C, which are glycosides of
Six chemical constituents were isolated from the whole plant of Epimedium fargesii and identified as epimedoside A, ikarisosids C, epimedin B, epimedin C, icariin and hyperin by means of UV, IR, 1H-NMR, 13C-NMR and MS spectral analysis. They were isolated from this plant for the first time.
Seven flavonoids named diphylloside A, epimedoside A, epimedin C, icariin, epimedoside C, icarisoside A, desmethylanhydroicaritin, as well as the oleanolic acid, were isolated from the roots of Epimedium wushanense for the first time. These flavonoids manifested significant antioxidant activity in
This article presents the isolation, quantification and antioxidant evaluation of bioactive principles from Epimedium elatum. LC-MS guided isolation technique was applied for the separation of target constituents. Three isolates; magnoflorine, chrysin and dibenzylideneacetone (DBA) were isolated for
A new tetrasaccharide flavonol glycoside was isolated from the aerial parts of Epimedium acuminatum, along with three known flavonoids. The structure of the new compound, named acuminatoside [1], was established to be anhydroicaritin-3-O-alpha-L-rhamnopyranosyl(1----2)-alpha-L-rhamno pyranoside-7-
Three flavonol glycosides isolated from the aerial parts of Epimedium acuminatum were identified as baohuoside II, epimedoside A and icariin on the basis of spectral data (UV, IR, MS, and 1HNMR) and chemical properties. Baohuoside II was isolated from the species for the first time.
OBJECTIVE
To study the components of roots of Epimedium acuminatum.
METHODS
Column chromatography was employed for the isolation. The isolated compounds were elucidated by UV, IR, FAB-MS, 1HNMR and 13CNMR analysis.
RESULTS
Four constituents were obtained and elucidated as epimedoside A(V),
Atherosclerosis is the key factor responsible for cardiovascular events, which is a major cause of morbidities and mortalities worldwide. It is well known that high-density lipoprotein (HDL) oxidation and glycation increases the risk for atherosclerosis. Epimedium koreanum has been used as a
The MeOH extract of Epimedium sagittatum was found to show neurite outgrowth activity on cultured PC12h cells. Bioassay-guided fractionation of the MeOH extract yielded six prenylated flavonol glycosides, ikarisoside A (1), icarisid II (2), epimedoside A (3), icariin (4), epimedin B (5), and
To develop a rapid resolution liquid chromatography (RRLC) method for the simultaneous determination of epimedoside A, epimedin A1, epimedin A, epimedin B, epimedin C, icariin, baohuosideⅡ, icarisideⅠ, sagittatoside B, 2"-O-rhamnosyl icarisideⅡ, and baohuosideⅠin epimedium total flavone capsule. At
A simple, accurate and reproducible method which is based on the capillary electrophoresis, coupled with solid-phase extraction, has been developed for simultaneous determination of multiple 8-prenylflavones from Chinese Herba Epimedii. In this study, the author has mainly illustrated the