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Sesquiterpenoids and phenolics from roots of Taraxacum udum
Klaudia Michalska1, Jolanta Marciniuk, Wanda Kisiel
1Department of Phytochemistry, Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland.
Abstract:
From roots of Taraxacum udum, two new and four known sesquiterpene lactones were isolated, together with five known phenolic compounds. The new compounds were characterized as 11beta, 13-dihydrotaraxinic acid and taraxinic acid 6-O-acetyl-beta-glucopyranosyl ester by spectroscopic methods, especially 1D and 2D NMR, and by comparison with structurally related compounds. The plant material was shown to be a good source of taraxinic acid derivatives.
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