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Multiple chromatographic separations of the CHCl 3 -soluble extract of the roots of Echinacea purpurea led to the isolation of 19 compounds. Four natural products, three alkamides and nitidanin diisovalerianate, were identified, and five further compounds were detected for the first time in this species. Additionally, 10 known E. purpurea metabolites were isolated. The structures were determined...
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