Work

Scaffold Hybridization Strategy Leads to the Discovery of Dopamine D 3 Receptor-Selective or Multitarget Bitopic Ligands Potentially Useful for Central Nervous System Disorders

Year: 2021

Type: article

Abstract: In the search for novel bitopic compounds targeting the dopamine D 3 receptor (D 3 R), the N-(2,3-dichlorophenyl)piperazine nucleus (primary pharmacophore) has been linked to the 6,6-or 5,5-diphenyl-1,4dioxane-2-carboxamide or the 1,4-benzodioxane-2-carboxamide scaffold (secondary pharmacophore) by an unsubstituted or 3-F-/3-OH-substituted butyl chain.This scaffold hybridization strategy led to the discovery of potent D 3 Rselective or multitarget ligands potentially useful for central nervous system disorders.In particular, the 6,6-diphenyl-1,4-dioxane derivative 3 showed a D 3 Rpreferential profile, while an interesting multitarget behavior has been highlighted for the 5,5-diphenyl-1,4-dioxane and 1,4-benzodioxane derivatives 6 and 9, respectively, which displayed potent D 2 R antagonism, 5-HT 1A R and D 4 R agonism, as well as potent D 3 R partial agonism.They also behaved as low-potency 5-HT 2A R antagonists and 5-HT 2C R partial agonists.Such a profile might be a promising starting point for the discovery of novel antipsychotic agents.

Source: ACS Chemical Neuroscience

DOI: 10.1021/acschemneuro.1c00368