Amino Acids

, Volume 42, Issue 4, pp 1339–1348 | Cite as

Chemoenzymatic routes to enantiomerically pure 2-azatyrosine and 2-, 3- and 4-pyridylalanine derivatives

  • Amer Moussa
  • Patrick MeffreEmail author
  • Jean Martinez
  • Valérie Rolland
Original Article


Enantiomerically pure 2-, 3- or 4-pyridylalanine (pya) and 2-azatyrosine (azatyr) are known to present various biological activities. After incorporation into appropriate peptide sequences, these heterocyclic non natural α-amino acids could behave as new substrates or inhibitors of elastase from Pseudomonas aeruginosa. This enzyme is known to be involved in nosocomial infections and infections related to the cystic fibrosis disease. New efficient chemoenzymatic preparations of those compounds using α-chymotrypsin (α-CT) are presented.


Heterocyclic α-amino acids Pyridyl alanine Azatyrosine Chemoenzymatic route Pseudomonas aeruginosa elastase 


Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Amer Moussa
    • 1
  • Patrick Meffre
    • 1
    • 2
    Email author
  • Jean Martinez
    • 1
  • Valérie Rolland
    • 1
  1. 1.IBMM-UMR 5247-CNRSUniversités Montpellier 1 et 2Montpellier Cedex 5France
  2. 2.Laboratoire de ChimieBioOrganique-LCBOUniversite de NimesNîmesFrance

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