STUDY ON THREE NEW TRITERPENES BY NMR TECHNIQUES

Chinese Journal of Magnetic Resonance ›› 2000, Vol. 17 ›› Issue (4): 283-296.

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STUDY ON THREE NEW TRITERPENES BY NMR TECHNIQUES

WANG Taotao², LU Runhua¹, WANG Hanqing^1,3, CHEN Zhong³

1. Lanzhou Institute of Chemical Physics, The Chinese Academy of Sciences, State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou 730000;
2. Department of Chemistry Graduate Student School of Sciences and Technology University of China, Beijing 100039;
3. The Res. Lab. of SEDC of Anal. Sci. for Material and Life Process Chem., Xiamen Univ., Xiamen 361005

Received:1999-01-18 Published:2000-08-05 Online:2018-01-11

Abstract

Abstract: The concerted application of a variety of one-and two-dimensional NMR techniques to the structural elucidation of the three natural products:latifoliasida Ⅰ,Ⅱ,Ⅲ isolatated from Ilex Latifolia, in C_-5D_-5N solution are reported. Especially the techniques of 2D NMR(TOCSY,HMQC, and HMBC), let us solve the problem such as the anomeric configuration, linkages between sugar and sugar, between the aglycone and sugar. These spectra provide valuable information for assigning the ¹³C NMR resonance of this class of compounds.

Key words: Triterpene, ¹H NMR, ¹³C NMR, 2D NMR

WANG Taotao, LU Runhua, WANG Hanqing, CHEN Zhong. STUDY ON THREE NEW TRITERPENES BY NMR TECHNIQUES[J]. Chinese Journal of Magnetic Resonance, 2000, 17(4): 283-296.

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STUDY ON THREE NEW TRITERPENES BY NMR TECHNIQUES

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