Synthesis and SAR of 4-aminocyclopentapyrrolidines as orally active N-type calcium channel inhibitors for inflammatory and neuropathic pain

Bioorg Med Chem Lett. 2013 Sep 1;23(17):4857-61. doi: 10.1016/j.bmcl.2013.06.074. Epub 2013 Jul 4.

Abstract

A novel series of N-type calcium channel inhibitors have been discovered. Optimization of potency and HT-ADME properties provides 4-aminocyclopentapyrrolidines with analgesic efficacy after oral dosing.

Keywords: Analgesia; Enantiomeric synthesis; Microsomal stability; N-type calcium channels; SAR.

MeSH terms

  • Administration, Oral
  • Analgesics / chemical synthesis
  • Analgesics / chemistry*
  • Analgesics / metabolism
  • Analgesics / therapeutic use*
  • Animals
  • Calcium Channel Blockers / chemical synthesis
  • Calcium Channel Blockers / chemistry*
  • Calcium Channel Blockers / metabolism
  • Calcium Channel Blockers / therapeutic use*
  • Calcium Channels, N-Type / metabolism*
  • Humans
  • Microsomes / metabolism
  • Neuralgia / drug therapy*
  • Rats
  • Structure-Activity Relationship

Substances

  • Analgesics
  • Calcium Channel Blockers
  • Calcium Channels, N-Type