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A new nortriterpenoid saponin from the roots of Symplocos caudata Wall
Jian-Shuang Jiang1, Zhao-Zhen Liu, Zi-Ming Feng
1Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College (Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education), Beijing, China.
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.
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