अमूर्त
Triterpenoid saponins from Eryngium agavifolium
Cristina B.Colloca, Luis Ariza Espinar, Virginia E.Sosa
Aerial parts of E. agavifoliumG. yielded 3-O-(ï¢-D-glucopyranosyl) betulinic acid 28-O-(ï¢-D-glucopyranosyl) ester, 3-O-(ï¢-D-glucuronopyranosyl) betulinic acid 28-O-(ï¢-D-glucopyranosyl) ester, 3-O-(ï¢-D-galactopyranosyl) betulinic acid 28-O-[ï¢-D-glucopyranosyl (1ï‚®3)-ï¢-D- glucopyranosyl] ester, 3-O-[3-ï¢-D-glucopyranosyl(1ï‚®2)-ï¡-L-arabinopyranosyl] betulinic acid 28-O-(ï¢-D-glucopyranosyl) ester and the already known 3-O-ï¢-Dglucopyranosyl betulinic acid. The structures of the isolated compounds were determined using spectroscopic methods.
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