Beta-nitrostyrene derivatives as potential antibacterial agents: a structure-property-activity relationship study

Bioorg Med Chem. 2006 Jun 15;14(12):4078-88. doi: 10.1016/j.bmc.2006.02.006. Epub 2006 Feb 23.

Abstract

A multidisciplinary project was developed, combining the synthesis of a series of beta-nitrostyrene derivatives and the determination of their physicochemical parameters (redox potentials, partition coefficients), to the evaluation of the corresponding antibacterial activity. A complete conformational analysis was also performed, in order to get relevant structural information. Subsequently, a structure-property-activity (SPAR) approach was applied, through linear regression analysis, aiming at obtaining a putative correlation between the physicochemical parameters of the compounds investigated and their antibacterial activity (both against standard strains and clinical isolates). The beta-nitrostyrene compounds displayed a lower activity towards all the tested bacteria relative to the beta-methyl-beta-nitrostyrene analogues. This was observed particularly for the 3-hydroxy-4-methoxy-beta-methyl-beta-nitrostyrene (IVb) against the Gram-positive bacteria (Staphylococcus aureus, Enterococcus faecalis and Enterococcus faecium). The SPAR results revealed the existence of a clear correlation between the redox potentials and the antibacterial activity of the series of beta-nitrostyrene derivatives under study.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Bacterial Agents / chemical synthesis
  • Anti-Bacterial Agents / chemistry*
  • Anti-Bacterial Agents / pharmacology
  • Electrochemistry
  • Gram-Positive Bacteria / drug effects
  • Microbial Sensitivity Tests
  • Models, Molecular
  • Molecular Structure
  • Oxidation-Reduction
  • Structure-Activity Relationship
  • Styrenes / chemical synthesis
  • Styrenes / chemistry*
  • Styrenes / pharmacology

Substances

  • 3-hydroxy-4-methoxy-beta-methyl-beta-nitrostyrene
  • Anti-Bacterial Agents
  • Styrenes
  • beta-nitrostyrene