Synthesis and SAR of heterocyclic carboxylic acid isosteres based on 2-biarylethylimidazole as bombesin receptor subtype-3 (BRS-3) agonists for the treatment of obesity

Bioorg Med Chem Lett. 2010 May 1;20(9):2912-5. doi: 10.1016/j.bmcl.2010.03.028. Epub 2010 Mar 12.

Abstract

SAR around non-peptidic potent bombesin receptor subtype-3 (BRS-3) agonist lead 2 is presented. Attempts to replace the carboxylic acid with heterocyclic isosteres to improve oral bioavailability and brain penetration are described.

MeSH terms

  • Administration, Oral
  • Animals
  • Anti-Obesity Agents / chemical synthesis*
  • Anti-Obesity Agents / chemistry
  • Anti-Obesity Agents / therapeutic use
  • Brain / metabolism
  • Humans
  • Imidazoles / chemical synthesis
  • Imidazoles / chemistry*
  • Imidazoles / therapeutic use
  • Mice
  • Obesity / drug therapy
  • Rats
  • Receptors, Bombesin / agonists*
  • Receptors, Bombesin / metabolism
  • Structure-Activity Relationship

Substances

  • Anti-Obesity Agents
  • Imidazoles
  • Receptors, Bombesin
  • bombesin receptor subtype 3