Chinese Journal of Magnetic Resonance ›› 2019, Vol. 36 ›› Issue (3): 350-358.doi: 10.11938/cjmr20182689

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Spectral Analyses and Structural Elucidation of Azilsartan

WANG Ya-lan1,2,3, WANG Xiao-jing1,2, WANG Zhi-wei3   

  1. 1. School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan 250200, China;
    2. Ministry of Health Key Laboratory for Biotech and Drugs, Institute of Materia Medica, Shandong Academy of Medical Sciences, Jinan 250062, China;
    3. Shandong Analysis and Test Center, Qilu University of Technology(Shandong Academy of Sciences), Jinan 250014, China
  • Received:2018-11-07 Published:2019-03-01

Abstract: Azilsartan is a novel AT-1 angiotensin Ⅱ receptor blocker, which reduces blood pressure mildly without the side effect of cough. The drug is believed to have a large market potential. In this study, the drug was analyzed by ultraviolet spectroscopy (UV), infrared spectroscopy (IR), high resolution mass spectrometry (HRMS) and one-/two-dimensional magnetic resonance spectroscopy (i.e., 1H NMR, 13C NMR, DEPT, 1H-1H COSY, HMQC and HMBC). The spectral data were carefully analyzed, interpreted and used to elucidate the structure of the compound.

Key words: nuclear magnetic resonance (NMR), assignment, chemical shift, azilsartan, structure elucidation

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