Studies on the Constituents of Polygala japonica HOUTT. III. Structures of Polygalasaponins XX-XXVII

Abstract

Eight new oleanane-type saponins, polygalasaponins XX-XXVII, along with a known saponin, hederagenin 3-O-β-D-glucopyranosyl (1→2)-β-D-glucopyranoside, were isolated from the aerial part of Polygala japonica. The structures of these compounds were established on the basis of spectroscopic and chemical evidence.