Heterocyclic 1,7-disubstituted indole sulfonamides are potent and selective human EP3 receptor antagonists

Bioorg Med Chem Lett. 2009 Dec 1;19(23):6797-800. doi: 10.1016/j.bmcl.2009.09.084. Epub 2009 Sep 27.

Abstract

We have developed a pharmacophore model for the EP(3) receptor antagonists based on its endogenous ligand PGE(2). This ligand-based design yielded a series of novel peri-substituted [4.3.0] bicyclic aromatics featuring 1-alklyaryl 7-heterocyclic sulfonamide substituents. The synthesized molecules are potent antagonists of human EP(3) receptor in vitro and show inhibition of rat platelets aggregation. Optimized derivatives display high selectivity over IP, FP, and other EP receptor panels.

MeSH terms

  • Crystallography, X-Ray
  • Dose-Response Relationship, Drug
  • Drug Design
  • Heterocyclic Compounds / chemical synthesis
  • Heterocyclic Compounds / chemistry
  • Heterocyclic Compounds / pharmacology*
  • Humans
  • Indoles / chemical synthesis
  • Indoles / chemistry
  • Indoles / pharmacology*
  • Models, Molecular
  • Molecular Structure
  • Receptors, Prostaglandin E / antagonists & inhibitors*
  • Receptors, Prostaglandin E, EP3 Subtype
  • Stereoisomerism
  • Structure-Activity Relationship
  • Sulfonamides / chemical synthesis
  • Sulfonamides / chemistry
  • Sulfonamides / pharmacology*

Substances

  • Heterocyclic Compounds
  • Indoles
  • PTGER3 protein, human
  • Ptger3 protein, rat
  • Receptors, Prostaglandin E
  • Receptors, Prostaglandin E, EP3 Subtype
  • Sulfonamides