Synthesis and structure-activity relationship study of benzofuran-based chalconoids bearing benzylpyridinium moiety as potent acetylcholinesterase inhibitors

Eur J Med Chem. 2015 Oct 20:103:361-9. doi: 10.1016/j.ejmech.2015.08.061. Epub 2015 Sep 3.

Abstract

A series of benzofuran-based chalconoids 6a-v were designed and synthesized as new potential AChE inhibitors. The in vitro assay of synthesized compounds 6a-v showed that most compounds had significant anti-AChE activity at micromolar or sub-micromolar levels. Among the tested compounds, 3-pyridinium derivative 6m bearing N-(2-bromobenzyl) moiety and 7-methoxy substituent on the benzofuran ring exhibited superior activity. This compound with IC₅₀ value of 0.027 μM was as potent as standard drug donepezil.

Keywords: Acetylcholinesterase; Alzheimer's disease; Benzofuran; Docking study; Pyridinium.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acetylcholinesterase / metabolism*
  • Animals
  • Benzofurans / chemistry*
  • Chalcones / chemical synthesis
  • Chalcones / chemistry*
  • Chalcones / pharmacology*
  • Cholinesterase Inhibitors / chemical synthesis
  • Cholinesterase Inhibitors / chemistry*
  • Cholinesterase Inhibitors / pharmacology*
  • Dose-Response Relationship, Drug
  • Electrophorus
  • Molecular Structure
  • Pyridinium Compounds / chemical synthesis
  • Pyridinium Compounds / chemistry*
  • Pyridinium Compounds / pharmacology
  • Structure-Activity Relationship

Substances

  • Benzofurans
  • Chalcones
  • Cholinesterase Inhibitors
  • Pyridinium Compounds
  • Acetylcholinesterase
  • benzofuran