- Antioxidant and urease inhibitory C-glycosylflavonoids from Celtis africana.
Antioxidant and urease inhibitory C-glycosylflavonoids from Celtis africana.
Journal of Asian natural products research (2011-08-13)
Shagufta Perveen, Azza Muhammed El-Shafae, Areej Al-Taweel, Ghada Ahmed Fawzy, Abdul Malik, Nighat Afza, Mehreen Latif, Lubna Iqbal
PMID21830883
摘要
Two new C-glycosylflavonoids celtisides A (1) and B (2) have been isolated from n-butanol-soluble fraction of Celtis africana, along with five known C-glycosylflavonoids vitexin (3), orientin (4), isoswertiajaponin (5), isoswertisin (6), and 2″-O-rhamnosyl vitexin (7) reported for the first time from this species. Their structures were assigned from 1D and 2D NMR spectra. These compounds were investigated for biological activities and showed significant antioxidant and urease inhibitory activities.