Identification and biological evaluation of 4-(3-trifluoromethylpyridin-2-yl)piperazine-1-carboxylic acid (5-trifluoromethylpyridin-2-yl)amide, a high affinity TRPV1 (VR1) vanilloid receptor antagonist

J Med Chem. 2005 Mar 24;48(6):1857-72. doi: 10.1021/jm0495071.

Abstract

High throughput screening using the recombinant human TRPV1 receptor was used to identify a series of pyridinylpiperazine ureas (3) as TRPV1 vanilloid receptor ligands. Exploration of the structure-activity relationships by parallel synthesis identified the essential pharmacophoric elements for antagonism that permitted further optimization via targeted synthesis to provide a potent orally bioavailable and selective TRPV1 modulator 41 active in several in vivo models.

MeSH terms

  • Administration, Oral
  • Aminopyridines / chemical synthesis*
  • Aminopyridines / chemistry
  • Aminopyridines / pharmacology
  • Analgesics / chemical synthesis*
  • Analgesics / chemistry
  • Analgesics / pharmacology
  • Animals
  • Biological Availability
  • Body Temperature / drug effects
  • Calcium / metabolism
  • Capsaicin
  • Cell Line
  • Humans
  • Hypothermia / chemically induced
  • Hypothermia / prevention & control
  • Ion Channels / agonists
  • Ion Channels / antagonists & inhibitors*
  • Male
  • Pain Measurement
  • Piperazines / chemical synthesis*
  • Piperazines / chemistry
  • Piperazines / pharmacology
  • Rats
  • Structure-Activity Relationship
  • TRPV Cation Channels

Substances

  • 4-(3-trifluoromethylpyridin-2-yl)piperazine-1-carboxylic acid (5-trifluoromethylpyridin-2-yl)amide
  • Aminopyridines
  • Analgesics
  • Ion Channels
  • Piperazines
  • TRPV Cation Channels
  • TRPV1 protein, human
  • Trpv1 protein, rat
  • Capsaicin
  • Calcium