Phytochemical investigation on the whole plant of Eryngium yuccifolium resulted in the isolation and identification of three phenolic compounds (1-3) and 12 polyhydroxylated triterpenoid saponins, named eryngiosides A-L (4-15), together with four known compounds kaempferol-3-O-(2,6-di-O-trans-p-coumaroyl)-beta-D-glucopyranoside (16), caffeic acid (17), 21beta-angeloyloxy-3beta-[beta-D-glucopyranosyl-(1-->2)]-[beta-d-xylopyranosyl-(1-->3)]-beta-D-glucuronopyranosyloxyolean-12-ene-15alpha,16alpha,22alpha,28-tetrol (18), and saniculasaponin III (19). This study reports the isolation of these compounds and their structural elucidation by extensive spectroscopic analyses and chemical degradation.
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