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| A new triterpenoid saponin from the leaves and stems of Panax quinquefolium L. |
| Guo Yu Lia, Yi Mei Zengb, He Mengb, Xian Lib, Jin Hui Wanga,b |
a School of Pharmacy, Shihezi University, Shihezi 832002, China;
b School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China |
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Abstract One new triterpenoid saponin, quinquenoside L 17 (1), was isolated from the leaves and stems of Panax quinquefolium L., and its structure was elucidated as 20-O-[(β-D-xylopyranosyl-(1-6)-O-β-D-glucopyranosyl)]-6-O-β-D-glucopyranosyl-dammar-24-ene3,6,12,20-tetraol, by the combination analysis of one-dimensional NMR and two-dimensional NMR, mass spectrometry, CD spectrum and chemical evidences.
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Received: 17 January 2009
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| Fund:This work was financially supported by 973 Program (No.2006CB708517) and Program for New Century Excellent Talents in University of Peoples Republic of China (No.NCET-04-0289).We are grateful to Professor Tian-De Qin for identification of the plant material.Thanks also for Dalian Tianma Pharmacy Co.LTD. |
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Corresponding Authors:
Jin Hui Wang,E-mail address:tcm_shz@yahoo.cn
E-mail: tcm_shz@yahoo.cn
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