The synthesis and antistaphylococcal activity of dehydroabietic acid derivatives: Modifications at C-12

Bioorg Med Chem Lett. 2016 Nov 15;26(22):5492-5496. doi: 10.1016/j.bmcl.2016.10.018. Epub 2016 Oct 12.

Abstract

A series of 12-oxime and O-oxime ether derivatives of dehydroabietic acid were synthesized and investigated for the antibacterial activity against Staphylococcus aureus Newman strain and five multidrug-resistant strains (NRS-1, NRS-70, NRS-100, NRS-108, and NRS-271). The aromatic oximate derivative 11a showed the highest activity with MIC of 0.39-0.78μg/mL against S. aureus Newman. Of note, compounds 10b, 11 and 14 showed the most potent antibacterial activity against five multidrug-resistant S. aureus with MIC values of 1.25-3.13μg/mL. These results offered useful information for further strategic optimization in search of the antibacterial candidates against infection of multidrug-resistant Gram-positive bacteria.

Keywords: Antistaphylococcal; Dehydroabietic acid; Multidrug-resistant; Oxime; Synthesis.

MeSH terms

  • Abietanes / chemical synthesis
  • Abietanes / chemistry*
  • Abietanes / pharmacology*
  • Anti-Bacterial Agents / chemical synthesis
  • Anti-Bacterial Agents / chemistry*
  • Anti-Bacterial Agents / pharmacology*
  • Drug Resistance, Multiple, Bacterial
  • Humans
  • Microbial Sensitivity Tests
  • Oximes / chemical synthesis
  • Oximes / chemistry*
  • Oximes / pharmacology*
  • Staphylococcal Infections / drug therapy
  • Staphylococcus aureus / drug effects*
  • Structure-Activity Relationship

Substances

  • Abietanes
  • Anti-Bacterial Agents
  • Oximes
  • dehydroabietic acid