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Abstract
Two new cycloartane triterpenoid glycosides, named curculigosaponin N and curculigosaponin O, were isolated from rhizomes of Curculigo orchioides Gaertn. Their structures were elucidated on the basis of comprehensive spectroscopic analysis including IR, MS, 1D, and 2D NMR (HSQC and HMBC).
Acknowledgements
This study was financially supported by the project of Yunnan Science and Technology Plan (No. 2008IF011), the major projects of new drugs development of China (No. 2009ZX09102-126), the 973 project of the Ministry of Sciences and Technology (No. 2009CB941300), and the Open Fund of the state key laboratory in KIB (No. 0807E31211). The authors are grateful to the members of the staff of analytical group of State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, for the measurements of all spectra.