Acylated hydroxycinnamic acid glucosides from flowers of Telekia Speciosa |
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| Institution: | 1. Jagiellonian University, Faculty of Biology, Institute of Botany, 30-387 Kraków, Gronostajowa street 3, Poland;2. Jagiellonian University, Faculty of Biology, Institute of Environmental Sciences, 30-387 Kraków, Gronostajowa street 7, Poland;3. West Pomeranian University of Technology, Department of Ecology, Protection and Shaping of Environment, 71-434 Szczecin, S?owackiego street 17, Poland;4. Institute of Pharmacology, Polish Academy of Sciences, 31-343 Kraków, Sm?tna street 12, Poland |
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| Abstract: | One new derivative of ferulic acid (1), two new caffeic acid derivatives (2 and 3) and three known derivatives of caffeic acid: 6-O-(E)-caffeoyl-glucopyranose (4), (E)-caffeic acid 4-O-β-glucopyranoside (5) and 5-caffeoylquinic acid (chlorogenic acid, 6) were isolated from a butanolic fraction of extract from Telekia speciosa flowers. Moreover, the flavonol glucoside–patulitrin (7) was identified in the analyzed extract. Structures of (E)-ferulic acid 4-O-β-(6-O-2-hydroxyisovaleryl)-glucopyranoside (1), (E)-caffeic acid 4-O-β-(6-O-2-hydroxyisovaleryl)-glucopyranoside (2) and (E)-caffeic acid 4-O-β-(6-O-3-hydroxy-2-methylpropanoyl)-glucopyranoside (3) were elucidated by 1D and 2D NMR, HRESIMS and other spectral analyses. |
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| Keywords: | Hydroxycinnamates Inulae Phenolic compounds |
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