Structure-activity relationship studies of CNS agents. Part 14: Structural requirements for the 5-HT1A and 5-HT2A receptor selectivity of simple 1-(2-pyrimidinyl)piperazine derivatives

Pharmazie. 1994 Nov;49(11):801-6.

Abstract

The 5-HT1A and 5-HT2A receptor affinity of model 1-(2-pyrimidinyl)-piperazine derivatives 15-21 and 23-32 has been determined. 2-(N-Methylpiperazino)-4,6-di(2-thienyl)pyrimidine 26 is a new, highly active and selective 5-HT2A receptor ligand. The topography of a molecule and the stereoelectronic effects of the thiophene rings are the major factors responsible for the high affinity and selectivity of 26 towards 5-HT2A sites.

MeSH terms

  • Alkylation
  • Animals
  • Central Nervous System Agents / chemical synthesis*
  • Central Nervous System Agents / pharmacology
  • Models, Molecular
  • Piperazines / chemical synthesis*
  • Piperazines / pharmacology
  • Radioligand Assay
  • Rats
  • Receptors, Serotonin / drug effects*
  • Serotonin Antagonists / chemical synthesis*
  • Serotonin Antagonists / pharmacology
  • Structure-Activity Relationship

Substances

  • Central Nervous System Agents
  • Piperazines
  • Receptors, Serotonin
  • Serotonin Antagonists