Oligosaccharide polyesters from roots of Polygala fallax.

Five new oligosaccharide polyesters, fallaxoses A-E, along with four known ones, reiniose D, senegose G, tenuifolioses C and P, were isolated from the roots of Polygala fallax. Fallaxoses A-E were elucidated as 3-O-{4-O-[beta-D-glucopyranosyl-(1-->4)- alpha-L-rhamnopyranosyl]-feruloyl}-beta-D-fructofuranosyl- (2-->1)-(4,6-di-O-benzoyl)-alpha-D-glucopyranoside, 3-O-{4-O-[beta-D-glucocopyranosyl-(1-->3)-(2-O-acetyl)- alpha-L-rhamnopyranosyl]-feruloyl}-beta-D-fructofuranosyl-(2-->1)- (4, 6-di-O-benzoyl)-alpha-D-glucopyranoside, 1-O-p-coumaroyl-(3-O-benzoyl)-beta-D-fructofuranosyl-(2-->1)- [beta-D-glucopyranosyl-(1-->2)]-[6-O-acetyl-beta-D-glucopyranosyl- (1-->3)]-(4-O-p-coumaroyl)-alpha-D-glucopyranoside, 1-O-p-coumaroyl-(3-O-benzoyl)-beta-D-fructofuranosyl-(2-->1)- [beta-D-glucopyranosyl-(1-->2)]-[6-O-acetyl-beta-D-glucopyranosyl-(1-->3 )]-(4-O-feruloyl)-alpha-D-glucopyranoside, 1-O-feruloyl-(3-O-benzoyl)-beta-D-fructofuranosyl-(2-->1)- [beta-D-glucopyranosyl-(1-->2)]-[beta-D-glucopyranosyl- (1-->3)-(6-O-acetyl)-beta-D-glucopyranosyl-(1-->3)]- (6-O-feruloyl)-alpha-D-glucopyranoside, respectively, by spectroscopic and chemical means.