Synthesis, crystal structure and anti-fatigue effects of some benzamide derivatives

Molecules. 2014 Jan 16;19(1):1034-46. doi: 10.3390/molecules19011034.

Abstract

A series of benzamide derivatives such as 1-(1,3-benzodioxol-5-ylcarbonyl) piperidine (1-BCP) were synthesized by the reaction of substituted benzoic acids with piperidine, morpholine or pyrrolidine using a novel method. The crystals of these benzamide derivatives were obtained by recrystallization. Structures of target and intermediate compounds were determined via FT-IR, 1H-NMR and elemental analysis and X-ray crystallography of select examples. The crystal structures of these compounds have potential applications to identify the binding site for allosteric modulators of the α-amino-3-hydroxy-5-methylisoxazole-4-propionic acid (AMPA) receptor. The anti-fatigue effects of the benzamide derivatives in weight-loaded forced swimming mice were investigated in a swimming endurance capacity test used as an indicator of fatigue. The swimming times to exhaustion were longer in the b3, d3, and e3 groups than in the caffeine group (p<0.05). In conclusion, b3, d3 and e3 enhanced the forced swimming capacity of mice. The mechanism of the anti-fatigue effects will be studied in the future.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Benzamides / chemical synthesis*
  • Benzamides / chemistry
  • Benzamides / pharmacology
  • Central Nervous System Stimulants / chemical synthesis*
  • Central Nervous System Stimulants / chemistry
  • Central Nervous System Stimulants / pharmacology
  • Crystallography, X-Ray
  • Drug Evaluation, Preclinical
  • Exercise Tolerance / drug effects
  • Male
  • Mice
  • Molecular Structure
  • Physical Exertion / drug effects
  • Piperidines / chemistry
  • Spectroscopy, Fourier Transform Infrared
  • Swimming

Substances

  • Benzamides
  • Central Nervous System Stimulants
  • Piperidines