Decahydroquinoline amides as highly selective CB2 agonists: role of selectivity on in vivo efficacy in a rodent model of analgesia

Bioorg Med Chem Lett. 2011 Apr 15;21(8):2359-64. doi: 10.1016/j.bmcl.2011.02.078. Epub 2011 Feb 26.

Abstract

A novel series of decahydroquinoline CB2 agonists is described. Optimization of the amide substituent led to improvements in CB2/CB1 selectivity as well as physical properties. Two key compounds were examined in the rat CFA model of acute inflammatory pain. A moderately selective CB2 agonist was active in this model. A CB2 agonist lacking functional CB1 activity was inactive in this model despite high in vivo exposure both peripherally and centrally.

MeSH terms

  • Amides / chemical synthesis
  • Amides / chemistry*
  • Amides / therapeutic use
  • Analgesics / chemical synthesis
  • Analgesics / chemistry*
  • Analgesics / therapeutic use
  • Animals
  • Disease Models, Animal
  • Humans
  • Mice
  • Mice, Transgenic
  • Pain / drug therapy
  • Quinolines / chemistry*
  • Rats
  • Receptor, Cannabinoid, CB1 / agonists
  • Receptor, Cannabinoid, CB1 / metabolism
  • Receptor, Cannabinoid, CB2 / agonists*
  • Receptor, Cannabinoid, CB2 / metabolism
  • Structure-Activity Relationship

Substances

  • Amides
  • Analgesics
  • Quinolines
  • Receptor, Cannabinoid, CB1
  • Receptor, Cannabinoid, CB2
  • quinoline