Substituted N-Phenylpyrazine-2-carboxamides: synthesis and antimycobacterial evaluation.

The condensation of chlorides of substituted pyrazinecarboxylic acids with ringsubstituted anilines yielded twelve substituted pyrazinecarboxylic acid amides. The synthetic approach, analytical, and lipophilicity data of the newly synthesized compounds are presented. Two antituberculosis assays were used. Firstly, the antimycobacterial activity against four different Mycobacterium strains in a series of pyrazine derivatives was investigated. Secondly, the antimycobacterial evaluation was performed at the Tuberculosis Antimicrobial Acquisition and Coordinating Facility (TAACF) program. Interesting in vitro antimycobacterial activity was found, N-(3-iodo-4-methylphenyl) pyrazine-2-carboxamide (9) was most active derivative compound against M. tuberculosis (MIC < 2.0 micromol/L), while another iodo derivative 5-tert-butyl-6-chloro-N-(3-iodo-4-methyl-phenyl)pyrazine-2-carboxamide (12) was the most active compound in the TAACF antituberculosis screening program (IC(90) = 0.819 microg/mL).
AuthorsMartin Dolezal, Jan Zitko, Diana Kesetovicová, Jirí Kunes, Michaela Svobodová
JournalMolecules (Basel, Switzerland) (Molecules) Vol. 14 Issue 10 Pg. 4180-9 ( 2009) ISSN: 1420-3049 [Electronic] Switzerland
PMID19924056 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • 5-tert-butyl-6-chloro-N-(3-iodo-4-methyl-phenyl)pyrazine-2-carboxamide
  • Antitubercular Agents
  • N-(3-iodo-4-methylphenyl)pyrazine-2-carboxamide
  • Pyrazines
  • Pyrazinamide
  • Antitubercular Agents (chemical synthesis, chemistry, pharmacology)
  • Mycobacterium avium (drug effects)
  • Mycobacterium kansasii (drug effects)
  • Mycobacterium tuberculosis (drug effects)
  • Pyrazinamide (chemistry)
  • Pyrazines (chemical synthesis, chemistry, pharmacology)

Join CureHunter, for free Research Interface BASIC access!

Take advantage of free CureHunter research engine access to explore the best drug and treatment options for any disease. Find out why thousands of doctors, pharma researchers and patient activists around the world use CureHunter every day.
Realize the full power of the drug-disease research network!

Choose Username:
Verify Password: