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Triterpenoid saponins from Eryngium agavifolium

Cristina B.Colloca, Luis Ariza Espinar, Virginia E.Sosa

Aerial parts of E. agavifoliumG. yielded 3-O-(-D-glucopyranosyl) betulinic acid 28-O-(-D-glucopyranosyl) ester, 3-O-(-D-glucuronopyranosyl) betulinic acid 28-O-(-D-glucopyranosyl) ester, 3-O-(-D-galactopyranosyl) betulinic acid 28-O-[-D-glucopyranosyl (13)--D- glucopyranosyl] ester, 3-O-[3--D-glucopyranosyl(12)--L-arabinopyranosyl] betulinic acid 28-O-(-D-glucopyranosyl) ester and the already known 3-O--Dglucopyranosyl betulinic acid. The structures of the isolated compounds were determined using spectroscopic methods.