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Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade
Published on: August 14, 2019
Antioxidant activity and two new flavonoids from Washingtonia filifera
N H El-Sayed1, N M Ammar, S Y Al-Okbi
1Department of Tanning Materials and Protein Chemistry, National Research Centre, El-Tahrir St., Dokki, Cairo, Egypt. nabil_17@yahoo.com
Natural Product Research
|November 16, 2005
Abstract:
Two new flavonoids, 8-hydroxyisoscoparin (1) and luteolin 7-O-glucoside 4''-sulfate (2), along with eight known flavonoids, including luteolin 7-O-glucoside 2''-sulfate, were isolated and identified from Washingtonia filifera. All compounds were characterized by (1)H-NMR, (13)C-NMR, CI-MS, FABMS and UV. The antioxidant activities of various W. filifera extracts were determined.
