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《Chemistry and Industry of Forest Products》 2008-02
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Flavonoids from the Leaves of Sabina vulgaris Antoine

ZHAO Jun1,2,YAN Ming2,HUANG Yi2,HE Wen-yi3,ZHAO Yu1(1.Department of Traditional Chinese and Natural Drug Research,College of Pharmaceutical Sciences,Zhejiang University,Hangzhou 310058,China;2.Xinjiang Key Laboratory for Research and Development of Uighur Medicines;Xinjiang Institute of Materia Medica,Urumqi 830002,China;3.Chinese Academy of Medical Science Peking Union College Medicine,Institute of Material Medica,Beijing 100050,China)  
Chemical constituents in the leaves of Sabina vulgaris Antoine were studied.Nine flavonoids were isolated and purified by extraction and different kinds of column chromatography,and their structures were elucidated as cupressuflavone(Ⅰ),cupressuflavone 4',4-dimethyl ether(Ⅱ),amentoflavone(Ⅲ),podocarpusflavone A(Ⅳ),catechin(Ⅴ),quercetin(Ⅵ),isoscutellarein 7-O-β-D-xylopyranoside(Ⅶ),myricetin 3-O-β-D-glucoside(Ⅷ),rutin(Ⅸ).CompoundsⅠ,Ⅱ,Ⅴ,Ⅶ,Ⅷ and Ⅸ were obtained from this plant for the first time.Compounds Ⅷ and Ⅸ were isolated from Sabina genus for the first time.All of isolated compounds were tested for their antioxidative activities by 1,1-diphenyl-2-picrylhydrazyl free radical(DPPH·)scavenging assay.It was found that compounds Ⅴ and Ⅵ showed antioxidative activity close to that of positive control,L-ascorbic acid,and the flavonoids glycosides(Ⅶ,Ⅷ and Ⅸ)are more active than the biflavones(Ⅰ,Ⅱ,Ⅲ and Ⅳ).
【Fund】: 国家中医药科学技术研究基金(2000-J-M-02)
【CateGory Index】: R284
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