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N-Nitrosated N-Hydroxyguanidines Are Nitric Oxide-Releasing Diazeniumdiolates

  1. Author:
    Southan, G. J.
    Srinivasan, A.
    George, C.
    Fales, H. M.
    Keefer, L. K.
    1. Year: 1998
  1. Journal: Chemical Communications
    1. 11
    2. Pages: 1191-1192
  2. Type of Article: Article
  1. Abstract:

    N-Hydroxyguanidines can be nitrosatively converted to zwitterionic diazeniumdiolates of crystallographically-confirmed structure H2N+=C[NHR][N(O)NO](-), whose hydrolytic dissociation at physiological pH leads to both NO and N2O; the results appear to account for the formation of the 'potential intercellular nitric oxide carrier' produced on exposing N-G-hydroxy-L-arginine (a metabolic intermediate in mammalian NO biosynthesis) to aerobic NO. [References: 11]

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