Phytochemistry p. 497 - 504 (1997)
Update date:2022-08-11
Topics:
Chen, Min
Wu, Wei Wei
Nanz, Daniel
Sticher, Otto
Five new triterpene saponins, leonticins D-H, were isolated from the tubers of Leontice kiangnanensis. Based on a combination of chemical degradation and spectroscopic analysis (negative ion FAB mass spectrometry and 2D NMR experiments) their structures were characterized as 3-O-α-L- arabinopyranosyl-caulophyllogenin 28-O-α-L-rhamnopyranosyl-(1→4)-β-D- glucopyranosyl-1(1→6-β-D-glucopyranoside, 3-O-[β-D-glucopyranosyl-(1→3)]- [β-D-glucopyranosyl-(1→2)]-α-L-arabinopyranosyl-oleanolic acid 28-O-α-L- rhamnopyranosyl-(1→4)-β-D-glucopyranosyl-(1→6)-β-D-glucopyranoside, 3-O- [β-D-glucopyranosyl-(1→3)]-[β-D-glucopyranosyl-(1→2)]-α-L- arabinopyranosyl-hederagenin 28-O-α-L-rhamnopyranosyl-(1→4)-β-D- glucopyranosyl-(1→6)-β-D-glucopyranoside, 3-O-β-D-xylopyranosyl-(1→3)- β-D-galactopyranosyl-(1→4)-β-D-glucopyranosyl-(1→3)-α-L- arabinopyranosyl-oleanolic acid 28-O-α-L-rhamnopyranosyl-(1→4)-β-D- glucopyranosyl-(1→6)-β-D-glucopyranoside and 3-O-β-D-xylopyranosyl- (1→3)-β-D-galactopyranosyl-(1→4)-β-D-glucopyranosyl-(1→3)-α-L- arabinopyranosyl-echinocystic acid 28-O-α-L-rhamnopyranosyl-(1→4)-β-D- glucopyranosyl-(1→6)-β-D-glucopyranoside respectively.
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