Identification of metabolites produced from N-phenylpiperazine by Mycobacterium spp

  • M. D. Adjei
  • J. Deck
  • T. M. Heinze
  • J. P. Freeman
  • A. J. Williams
  • J. B. Sutherland
Original Paper


Mycobacterium sp. 7E1B1W and seven other mycobacterial strains known to degrade hydrocarbons were investigated to determine their ability to metabolize the piperazine ring, a substructure found in many drugs. Cultures were grown at 30°C in tryptic soy broth and dosed with 3.1 mM N-phenylpiperazine hydrochloride; samples were removed at intervals and extracted with ethyl acetate. Two metabolites were purified from each of the extracts by high-performance liquid chromatography; they were identified by mass spectrometry and 1H nuclear magnetic resonance spectroscopy as N-(2-anilinoethyl)acetamide and N-acetyl-N′-phenylpiperazine. The results show that mycobacteria have the ability to acetylate piperazine rings and cleave carbon-nitrogen bonds.


Biotransformation Fluoroquinolones Mycobacterium N-phenylpiperazine Piperazine 


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Copyright information

© Society for Industrial Microbiology 2006

Authors and Affiliations

  • M. D. Adjei
    • 1
    • 3
  • J. Deck
    • 1
  • T. M. Heinze
    • 2
  • J. P. Freeman
    • 2
  • A. J. Williams
    • 1
  • J. B. Sutherland
    • 1
  1. 1.Division of MicrobiologyNational Center for Toxicological Research, US Food and Drug AdministrationJeffersonUSA
  2. 2.Division of Biochemical ToxicologyNational Center for Toxicological Research, US Food and Drug AdministrationJeffersonUSA
  3. 3.Norfolk Department of Public HealthNorfolkUSA

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