Chemical constituents of flavonoids in pine needles of Cedrus deodara
- Author:
Dong-Yan LIU
1
Author Information
1. Gansu Academy of Medical Science
- Publication Type:Journal Article
- Keywords:
Cedrusone A;
Flavonoids;
Myricetin;
Pine needles of Cedrus deodara (Roxb.) loud;
Quercetin
- From:
Chinese Traditional and Herbal Drugs
2011;42(4):631-633
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To study the chemical constituents of flavonoids in the pine needles of Cedrus deodara. Methods: Flavonoids were isolated and purified from ethyl acetate extract of the pine needles by chromatography on silica gel and Sephadex LH-20. Their structures were identified on the basis of spectroscopic analysis and chemical evidence. Results: Five flavonoids were isolated and identified as 3′,5′-dimethoxymyricetin-3-O-(6″-O-acetyl)- α-D-glucopyranoside (1), myricetin (2), 2R,3R-dihydromyricetin (3), quercetin (4), and 2R,3R-dihydroquercetin (5). Conclusion: Compound 1 is a new compound named as cedrusone A. Compounds 2-5 are isolated from the pine needles in the plants of Cedrus Trew for the first time.
