Synthesis of some pyrazolyl benzenesulfonamide derivatives as dual anti-inflammatory antimicrobial agents

J Enzyme Inhib Med Chem. 2009 Feb;24(1):296-309. doi: 10.1080/14756360802188404.

Abstract

Four series of pyrazolylbenzenesulfonamide derivatives were synthesized and evaluated for their anti-inflammatory activity using cotton pellet induced granuloma and carrageenan-induced rat paw edema bioassays. Moreover, COX-1 and COX-2 inhibitory activity, ulcerogenic effect and acute toxicity were also determined. Furthermore, the target compounds were screened for their in-vitro antimicrobial activity against Eischerichia coli, Staphylococcus aureus and Candida albicans. Compounds 4-(3-Phenyl-4-cyano-1H-pyrazol-1-yl)benzenesulfonamide 9a and 4-(3-Tolyl-4-cyano-1H-pyrazol-1-yl)benzenesulfonamide 9b were not only found to be the most active dual anti-inflammatory antimicrobial agents in the present study with good safety margin and minimal ulcerogenic effect but also exhibited good selective inhibitory activity towards COX-2. A docking pose for 9a and 9b separately in the active site of the human COX-2 enzyme was also obtained. Therefore, these compounds would represent a fruitful matrix for the development of dual anti-inflammatory antimicrobial candidates with remarkable COX-2 selectivity.

MeSH terms

  • Animals
  • Anti-Infective Agents / chemical synthesis*
  • Anti-Inflammatory Agents / chemical synthesis*
  • Benzenesulfonamides
  • Candida albicans / drug effects
  • Cyclooxygenase 2 Inhibitors / chemical synthesis
  • Drug Evaluation, Preclinical
  • Escherichia coli / drug effects
  • Humans
  • Rats
  • Staphylococcus aureus / drug effects
  • Sulfonamides / chemical synthesis*
  • Sulfonamides / pharmacology

Substances

  • Anti-Infective Agents
  • Anti-Inflammatory Agents
  • Cyclooxygenase 2 Inhibitors
  • Sulfonamides