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Abstract
A new nortriterpenoid saponin, 3β,17β-dihydroxy-28-nor-12-oleanen-16-one 3-O-β-d-galactopyranosyl (1 → 2)-{α-l-arabinopyranosyl (1 → 3)-[α-l-arabinofuranosyl (1 → 4)-β-d-glucuronopyranoside]} (1), along with two pairs of known isomers, was isolated from the roots of Symplocos caudata Wall. Their structures were elucidated by spectroscopic and chemical methods.
Acknowledgements
This research was supported by National Science and Technology Project of China (No. 2009ZX09311-004). The authors thank Prof. Lin Ma for the plant identification and Prof. YingHong Wang for recording NMR spectra.
