New oleanene-type triterpene saponins from Pueraria peduncularis

Two new oleanane-type triterpene saponins named pedunsaponins B (2) and C (3) were isolated from the roots of Pueraria peduncularis. Their structures were determined to be 3-O-(6-O-methyl)- g -glucuronopyranosyl-3 g ,15 f -dihydroxyolean-12-en-16-one (2), and 3-O- g -glucopyranosyl-(1 M 3)- g -glucuronopyranosyl-3 g ,15 f -dihydroxy-oleana-12-en-16-one (3), on the basis of spectroscopic evidence.

Keywords:

• Pueraria Peduncularis
• Leguminosae
• Triterpene Saponins
• Pedunsaponins B And C