Phenolic compounds and rare polyhydroxylated triterpenoid saponins from Eryngium yuccifolium.
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.
Zhang
Zhizhen
Z
National Center for Pharmaceutical Crops, Arthur Temple College of Forestry and Agriculture, Stephen F Austin State University, Nacogdoches, TX 75962-6109, USA.
Li
Shiyou
S
Ownby
Stacy
S
Wang
Ping
P
Yuan
Wei
W
Zhang
Wanli
W
Scott Beasley
R
R
D031049:Eryngium / Q000737:chemistry*; D006900:Hydroxylation; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010636:Phenols / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry*
D010636:Phenols; D012503:Saponins; D014315:Triterpenes