Flavonoid aglycones excreted by three Calceolaria species |
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| Institution: | 1. Laboratory of Experimental Protozoology, Department of Pathological Sciences, Center of Biological Sciences, State University of Londrina, PR, Brazil;2. Laboratory of Biotransformation and Phytochemistry, Department of Chemistry, Center of Exact Sciences, State University of Londrina, PR, Brazil;3. Laboratory of Research on Bioactive Molecules, Department of Chemistry, Center of Exact Sciences, State University of Londrina, PR, Brazil;4. Laboratory of Applied Immunology Research, Department of Pathology Science, Clinical Analysis and Toxicology, Health Sciences Center, State University of Londrina, Londrina, PR, Brazil |
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| Abstract: | The lipophilic exudate produced by Calceolaria irazuensis leaf glands was shown to contain small amounts of three rare 8-methoxy flavonoids and one new one: gossypetin 7,8,3′-trimethyl ether. The leaf exudates of C. chelidonioides and C. scabiosifolia also contain trace amounts of flavonoid aglycones. |
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