Flavonoids and a new polyacetylene from Bidens parviflora Willd |
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Authors: | Li Yu-Lan Li Jun Wang Nai-Li Yao Xin-Sheng |
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Institution: | Department of Natural Products Chemistry, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang, Liaoning 110016, P.R. China. liyulan@szda.gov.cn |
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Abstract: | Fifteen flavonoids, 1-7 and 9-16, and a polyacetylene, 8, were isolated from the ethanol extract of the dried whole plant of Bidens parviflora Willd. by various chromatographic techniques. Their structures have been elucidated on the basis of spectroscopic analyses and chemical studies. Compound 8 is new and was identified as 3-(R),8(E)-decene-4,6-diyne-1,3,10-triol. All the flavonoid compounds were isolated for the first time from this plant species. |
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