Design, synthesis, and biological evaluation of novel piperidine-4-carboxamide derivatives as potent CCR5 inhibitors

Eur J Med Chem. 2014 Jan:71:259-66. doi: 10.1016/j.ejmech.2013.11.013. Epub 2013 Nov 19.

Abstract

Based on a putative 'Y shape' pharmacophore model of CCR5 inhibitors, a series of novel piperidine-4-carboxamide derivatives were designed and synthesized using a group-reverse strategy. Among synthesized target compounds, 16g (IC₅₀ = 25.73 nM) and 16i (IC₅₀ = 25.53 nM) showed equivalent inhibitory activity against CCR5 to that of the positive control maraviroc (IC₅₀ = 25.43 nM) in calcium mobilization assay. Selected compounds were further tested for their antiviral activity in HIV-1 single cycle assay. Two compounds, 16g and 16i, displayed antiviral activity with IC₅₀ values of 73.01 nM and 94.10 nM, respectively. Additionally, the pharmacokinetic properties and inhibitory potency against hERG of 16g were evaluated, providing a foundation for ongoing optimization.

Keywords: Anti-HIV-1 agent; CCR5 inhibitor; Piperidine-4-carboxamide derivatives.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-HIV Agents / chemistry*
  • Anti-HIV Agents / pharmacology*
  • CCR5 Receptor Antagonists*
  • Drug Design*
  • HIV Infections / drug therapy
  • HIV-1 / drug effects
  • Humans
  • Piperidines / chemistry*
  • Piperidines / pharmacology*
  • Receptors, CCR5 / metabolism
  • Structure-Activity Relationship

Substances

  • Anti-HIV Agents
  • CCR5 Receptor Antagonists
  • Piperidines
  • Receptors, CCR5