Chinese Journal of Magnetic Resonance >
A Two-Dimensional NMR Study on Steroid Glycosides Extracted from Trillium tschonoskii
Received date: 2014-05-26
Revised date: 2015-01-12
Online published: 2015-03-05
Supported by
国家自然科学基金资助项目(81373978)；陕西省重点科技创新团队资助项目(2012KCT-20)；陕西省“13115”科技创新工程专项资助项目(2010ZDGC-22)；陕西省教育厅科技计划资助项目(09jk394)．
(25S)-27-hydroxypenogenin-3β-O-α-L-rhamnopyranosyl-(1→4)-[O-α-L-rhamnopyranosyl-(1→2)]-O-β-D-glucopyranoside (1) and polyphylloside III (2) were isolated from Trillium tschonoskii by column chromatography. One-dimensional and two-dimensional NMR techniques, including 1H NMR, 13C NMR, DEPT, HSQC, HMBC and 1H-1H COSY, were used to elucidate the structures of these compounds. 13C NMR and 1H NMR chemical shifts of the two compounds were completely assigned.
Key words： NMR; two-dimensional NMR; steroid glycosides; assignment
CHAI Jiang1 , WANG Xin3 , LI Hui-min4 , ZHANG Xin1 , YANG Fang1 , TANG Zhi-shu1 , SONG Xiao-mei1 , PEI Yue-hu4 , MEI Qi-bing2 , YUE Zheng-gang1 , 2 . A Two-Dimensional NMR Study on Steroid Glycosides Extracted from Trillium tschonoskii[J]. Chinese Journal of Magnetic Resonance, 2015 , 32(1) : 105 -115 . DOI: 10.11938/cjmr20150112
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