Chinese Journal of Magnetic Resonance ›› 1990, Vol. 7 ›› Issue (2): 209-214.

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1H NMR STUDY OF N-METHYL-ISOINDIGATIN IN DIFFERENT SOLVENTS

Han Xiouwen1, Xu Changfu2, Kong Man2, He Wenyi2, Jing Xiangju2, Sun Ruihai2   

  1. 1. Dalian Institute of Chemical Physics, Academia Sinica;
    2. Institute of Materia Medica, Chinese Acadical Sciences, Beijing
  • Received:1989-04-14 Revised:1989-08-03 Published:1990-06-05 Online:2018-01-23

Abstract: The 1H NMR spectra of N-methyl-isoindigatin in(CD3)2CO,CDCl3, DMSO-d6 and after D2O exchange were investigated by means of selective irradiation method. The 1H-1H coupling constants and the assignment of 1H NMR spectral lines of protons with extremely similar chemical envelopments were obtained.

Key words: Isoindigatin, Selective irradiation, Selective decoupling