Chinese Journal of Magnetic Resonance ›› 1992, Vol. 9 ›› Issue (4): 307-311.

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THE 13C NMR SPECTRAL DATABASE AND COMPUTER-AIDED SPECTRA ELUCIDA-TION SYSTEM OF FLAVONOID NATURAL PRODUCTS (Ⅱ)The Characteristics of 13C NMR Spectra Data of Flavonoid Compounds and Its Applications in Computer-aided Spectra Elucidation System

Gao Lingjie1, Zhao Tianzeng1, Liang Xiaotian2   

  1. 1. The Institute of Chemistry, Hcnan Academy of Sciences, Zhengzhou 450003;
    2. The Institute of Material Medica of the Academy of Chinese Medical Sciences, Beijing
  • Received:1992-02-28 Published:1992-12-05 Online:2018-01-20

Abstract: In this paper, a number of 13C NMR Spectra data of flavonoid compounds were studied and analysed. The characteristics of 13C NMR spectra and the rules of chemical shifts in the backbone of different flavonoid compounds were obtained. The factors affecting the chemical shifts of flavonoid compounds were discussed and the knowledge database for computer-aided 13C NMR spectra elucidation of flavonoid natural products was established.

Key words: 13C NMR, Flavonoids, Artificial intelligence