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Two new triterpenoid saponins from Glochidion puberum
Zhen Zhang1, Zhu-Lin Gao, Xin Fang
1College of Pharmacy, Dali University, Yunnan, China.
Abstract:
Two new triterpenoid saponins, puberosides A and B, were isolated from the aerial parts of Glochidion puberum. Their structures were elucidated as 3alpha-[(O-beta-D-glucopyranosyl-(1-->3)-O-alpha-L-arabinopyranosyl)oxy]-22alpha-benzoyloxy-olean-12-ene-16alpha,28-diol (1) and 3alpha-[(O-beta-D-glucopyranosyl-(1-->3)-O-alpha-L-arabinopyranosyl)oxy]-28-benzoyloxy-olean-12-ene-16alpha,22alpha-diol (2) by analysis of their spectroscopic data.
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