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A new chromone from seeds of <Emphasis Type="Italic">Cydonia oblonga</Emphasis> |
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| Authors: | Hajinisa?Ghopur S?K?Usmanova Amatjan?Ayupbek |
| Institution: | 1.Xinjiang Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Urumchi,P. R. China;2.Graduate University of the Chinese Academy of Sciences,Beijing,P. R. China;3.S. Yu. Yunusov Institute of the Chemistry of Plant Substances,Academy of Sciences,Tashkent,Republic of Uzbekistan |
| Abstract: | The new chromone 5,7-dihydroxy-2-n-pentacosanylchromen-4-one (1) in addition to the three known compounds ursolic acid (2), tormentic acid (3), and β-daucosterol (4) were isolated from seeds of Cydonia oblonga. Their structures were determined based on their 1D and 2D NMR and HR-ESI-MS spectral data. |
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