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A new triterpenoid saponin from Pulsatilla cernua
Yajuan Xu1, Lu Bai, Yonghong Liu
1Academy of Traditional Chinese Medicine of Jilin Province, Changchun 130021, China. xyj6492@sohu.com
Molecules (Basel, Switzerland)
|March 26, 2010
Abstract:
A new triterpenoid saponin was isolated from Pulsatilla cernua, along with eight known triterpenoids and triterpenoid glycosides. The new compound was identified as 3-O-beta-D-glucopyranosyl-(1-->4)-alpha-L-arabinopyranosyl-bayogenin-28-alpha-L-rhamnopyranosyl-(1-->4)-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranosyl ester (1) on the basis of 1D, 2D-NMR techniques, including COSY, HMBC, and HMQC correlations, MS analysis, as well as chemical methods.