Synthesis and anti-acetylcholinesterase activity of scopoletin derivatives

Bioorg Chem. 2016 Apr:65:137-45. doi: 10.1016/j.bioorg.2015.12.002. Epub 2015 Dec 8.

Abstract

A series of scopoletin derivatives incorporated with the pyridinium moiety was synthesized and evaluated for their acetylcholinesterase (AChE) inhibitory activity by the colorimetric Ellman's method. A 2-fluorobenzylpyridinium derivative was the most potent among the tested compounds, with an IC50 value of 0.215±0.015μM, which was greatly improved from that of scopoletin. Docking studies revealed that the scopoletin portion of the mentioned compound was bound to the peripheral anionic site of the AChE, whereas the N-benzylpyridinium residue to the catalytic anionic site.

Keywords: Acetylcholinesterase inhibitor; Pyridinium derivatives; Scopoletin; Synthesis.

MeSH terms

  • Acetylcholinesterase / metabolism*
  • Cholinesterase Inhibitors / chemical synthesis*
  • Cholinesterase Inhibitors / chemistry
  • Cholinesterase Inhibitors / pharmacology*
  • Dose-Response Relationship, Drug
  • Humans
  • Molecular Docking Simulation
  • Molecular Structure
  • Scopoletin / analogs & derivatives*
  • Scopoletin / chemical synthesis
  • Scopoletin / chemistry
  • Scopoletin / pharmacology*
  • Structure-Activity Relationship

Substances

  • Cholinesterase Inhibitors
  • Acetylcholinesterase
  • Scopoletin