Triterpenoid glycosides from the roots of Tetrapanax papyriferum K. Koch. III. Structures of four new saponins.

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Abstract
Six compounds were isolated from the roots of Tetrapanax papyriferum K. KOCH. and characterized as β-D-glucopyranosyl oleanate-(3)-[α-L-arabinofuranosyl-(1→4)]-[β-D-galactopyranosyl-(1→2)]-methyl-(β-D-glucopyranosid) uronate (1), α-L-rhamnopyranosyl-(1→4)-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl oleanate-(3)-α-L-arabinofuranosyl-(1→4)-methyl-(β-D-glucopyranosid) uronate (2), β-D-glucopyranosyl oleanate-(3)-β-D-galactopyranosyl-(1→2)-methyl-(β-D-glucopyranosid) uronate (3), methyl oleanate-(3)-[α-L-arabinofuranosyl-(1→4)]-[β-D-galactopyranosyl-(1→2)]-methyl-(β-D-glucopyranosid) uronate (4), β-sitosterol β-D-glucopyranoside (5) and oleanolic acid-(3)-β-D-galactopyranosyl-(1→2)-β-D-fucopyranoside (6) on the bases of chemical and spectroscopic evidence.

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