Flavonoids from flowers of Cephalaria pastricensis and their antiradical activity
oleh: SLOBODAN MILOSAVLJEVIC, PEDJA JANACKOVIC, VELE TESEVIC, NEBOJSA MENKOVIC, VLATKA VAJS, DEJAN GODJEVAC
| Format: | Article |
|---|---|
| Diterbitkan: | Serbian Chemical Society 2004-11-01 |
Deskripsi
Two flavonoid glycosides 1 and 2 having the luteolin structure were isolated from flowers of the endemic plant species Cephalaria pastricensis. They were identified by 1H and 13C NMR, as well as UV/Vis spectroscopy. The structures of 1 and 2 were also confirmed by the spectral data of aglycones and TLC of the sugars obtained after acid hydrolysis. Flavones 1 and 2 showed significant antiradical activity in the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay.