Bradykinin B1 antagonists: SAR studies in the 2,3-diaminopyridine series

Bioorg Med Chem Lett. 2005 Sep 1;15(17):3925-9. doi: 10.1016/j.bmcl.2005.05.133.

Abstract

SAR study of the biphenyl region of 2,3-diaminopyridine bradykinin B1 antagonists was investigated with non-aromatic carbo- and heterocyclic rings. A piperidine ring was found to be a good replacement for the proximal phenyl ring while replacement of the distal phenyl was optimal with a cyclohexyl group leading to a dramatic improvement in affinity for the B1 receptor.

MeSH terms

  • Aminopyridines / chemical synthesis*
  • Aminopyridines / pharmacokinetics
  • Aminopyridines / pharmacology
  • Animals
  • Bradykinin / antagonists & inhibitors
  • Bradykinin B1 Receptor Antagonists*
  • Humans
  • Pharmacokinetics
  • Protein Binding
  • Rats
  • Rats, Sprague-Dawley
  • Structure-Activity Relationship

Substances

  • Aminopyridines
  • Bradykinin B1 Receptor Antagonists
  • 2,3-diaminopyridine
  • Bradykinin