Aminopyrazoles with high affinity for the human neuropeptide Y5 receptor

Bioorg Med Chem Lett. 2001 Sep 3;11(17):2283-6. doi: 10.1016/s0960-894x(01)00448-6.

Abstract

1,3-Disubstituted-5-aminopyrazoles were prepared based on a lead compound found through high-throughput screening of our corporate compound library in an assay measuring affinity for the human neuropeptide Y5 receptor. The target compounds were prepared by cyclization of alpha-cyanoketones with appropriate hydrazines, followed by reduction and coupling to various sulfonamido-carboxylic acids. Several of these arylpyrazoles (e.g., 19 and 45) displayed high affinity for the human NPY Y5 receptor (<20nM IC(50)s).

MeSH terms

  • Binding, Competitive
  • Cell Line
  • Drug Design
  • Drug Evaluation, Preclinical
  • Humans
  • Inhibitory Concentration 50
  • Pyrazoles / chemistry*
  • Pyrazoles / metabolism*
  • Pyrazoles / pharmacology
  • Receptors, Neuropeptide Y / drug effects
  • Receptors, Neuropeptide Y / metabolism*
  • Structure-Activity Relationship*
  • Sulfonamides / chemistry*
  • Sulfonamides / metabolism*
  • Sulfonamides / pharmacology

Substances

  • 5-amino-1-(3-trifluoromethylphenyl)-3-(((2-nitrophenylsulfonamido)methyl)phenyl)pyrazole
  • 5-amino-1-(4-methylphenyl)-3-((4-methoxyphenylsulfonamido)phenyl)pyrazole
  • Pyrazoles
  • Receptors, Neuropeptide Y
  • Sulfonamides
  • neuropeptide Y5 receptor