Synthesis and Biological Evaluation of Fused Tricyclic Heterocycle Piperazine (Piperidine) Derivatives As Potential Multireceptor Atypical Antipsychotics

J Med Chem. 2018 Nov 21;61(22):10017-10039. doi: 10.1021/acs.jmedchem.8b01096. Epub 2018 Nov 9.

Abstract

Herein, a novel series of multireceptor ligands was developed as polypharmacological antipsychotic agents using the designed multiple ligand approach between dopamine receptors and serotonin receptors. Among them, compound 47 possessed unique pharmacological features, exhibiting high affinities for D2, D3, 5-HT1A, 5-HT2A, and 5-HT6 receptors and low efficacy at the off-target receptors (5-HT2C, histamine H1, and adrenergic α1 receptor). Compound 47 showed dose-dependent inhibition of apomorphine- and MK-801-induced motor behavior, and the conditioned avoidance response with low cataleptic effect. Moreover, compound 47 resulted nonsignificantly serum prolactin levels and weight gain change compared with risperidone. Additionally, compound 47 possessed a favorable pharmacokinetic profile with oral bioavailability of 58.8% in rats. Furthermore, compound 47 displayed procognition properties in a novel object recognition task in rats. Taken together, compound 47 may constitute a novel class of atypical antipsychotic drugs for schizophrenia.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antipsychotic Agents / chemical synthesis*
  • Antipsychotic Agents / chemistry
  • Antipsychotic Agents / pharmacokinetics
  • Antipsychotic Agents / pharmacology*
  • Body Weight / drug effects
  • Chemistry Techniques, Synthetic
  • Drug Design
  • Ether-A-Go-Go Potassium Channels / antagonists & inhibitors
  • Heterocyclic Compounds / chemical synthesis*
  • Heterocyclic Compounds / chemistry
  • Heterocyclic Compounds / pharmacokinetics
  • Heterocyclic Compounds / pharmacology*
  • Memory / drug effects
  • Mice
  • Piperazine / chemistry*
  • Rats
  • Schizophrenia / drug therapy
  • Structure-Activity Relationship
  • Tissue Distribution

Substances

  • Antipsychotic Agents
  • Ether-A-Go-Go Potassium Channels
  • Heterocyclic Compounds
  • Piperazine