Chinese Journal of Magnetic Resonance ›› 1999, Vol. 16 ›› Issue (5): 389-394.

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THE COMPLETE ASSIGNMENT OF NMR CHEMICAL SHIFTS OF TANGUTICOSIDE A

Teng Rongwei1, Zhong Huiming2, Chen Changxiang1, Wang Dezu1   

  1. 1. Kunming Institute of Botany, Chinese Academic of Sciences, Kunming 650204;
    2. Department of Chemistry, Lanzhou University, Lanzhou 730000
  • Received:1999-05-25 Revised:1999-06-28 Published:1999-10-05 Online:2018-01-13

Abstract: The structure of a triterpenoid saponin, Tanguticoside A was determined as 3-O-β-D-glucopyranoyl hederagenin 28-O-α-L-rhamnopyranosyl-(1→4)-β-D-glucopyranoyl-(1→6)-β-D-glucopyranoyl ester by 2D NMR technique, such as DQF COSY、HMQC、HMBC and ROESY, especially by HMQC-TOCSY experiments. The complete assignment of NMR signals was also given in this paper.

Key words: 2D NMR, HMQC-TOCSY, Tanguticoside A, Complete assignment