Tricyclic azepine derivatives as selective brain penetrant 5-HT6 receptor antagonists

Bioorg Med Chem Lett. 2008 Oct 15;18(20):5698-700. doi: 10.1016/j.bmcl.2008.08.010. Epub 2008 Aug 7.

Abstract

Starting from a benzazepine sulfonamide 5-HT(6) receptor antagonist lead with limited brain penetration, application of a strategy of conformational constraint and reduction of hydrogen bond donor count led to a novel series of tricyclic derivatives with high 5-HT(6) receptor affinity and excellent brain:blood ratios.

MeSH terms

  • Animals
  • Antidepressive Agents, Tricyclic / chemical synthesis*
  • Antidepressive Agents, Tricyclic / pharmacology
  • Blood-Brain Barrier / drug effects
  • Brain / drug effects*
  • Chemistry, Pharmaceutical / methods*
  • Cytochrome P-450 CYP3A
  • Cytochrome P-450 Enzyme System / chemistry
  • Humans
  • Hydrogen Bonding
  • Microsomes / drug effects
  • Models, Chemical
  • Molecular Conformation
  • Protein Isoforms
  • Rats
  • Receptors, Serotonin / chemistry*
  • Serotonin Antagonists / chemical synthesis*
  • Serotonin Antagonists / pharmacology

Substances

  • Antidepressive Agents, Tricyclic
  • Protein Isoforms
  • Receptors, Serotonin
  • Serotonin Antagonists
  • serotonin 6 receptor
  • Cytochrome P-450 Enzyme System
  • Cyp3a2 protein, rat
  • Cytochrome P-450 CYP3A