Novel orally active analgesic and anti-inflammatory cyclohexyl-N-acylhydrazone derivatives

Molecules. 2015 Feb 12;20(2):3067-88. doi: 10.3390/molecules20023067.

Abstract

The N-acylhydrazone (NAH) moiety is considered a privileged structure, being present in many compounds with diverse pharmacological activities. Among the activities attributed to NAH derivatives anti-inflammatory and analgesic ones are recurrent. As part of a research program aiming at the design of new analgesic and anti-inflammatory lead-candidates, a series of cyclohexyl-N-acylhydrazones 10-26 were structurally designed from molecular modification on the prototype LASSBio-294, representing a new class of cycloalkyl analogues. Compounds 10-26 and their conformationally restricted analogue 9 were synthetized and evaluated as analgesic and anti-inflammatory agents in classical pharmacologic protocols. The cyclohexyl-N-acylhydrazones 10-26 and the cyclohexenyl analogue 9 showed great anti-inflammatory and/or analgesic activities, but compound 13 stood out as a new prototype to treat acute and chronic painful states due to its important analgesic activity in a neuropathic pain model.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Analgesics* / chemical synthesis
  • Analgesics* / chemistry
  • Analgesics* / pharmacology
  • Animals
  • Anti-Inflammatory Agents, Non-Steroidal* / chemical synthesis
  • Anti-Inflammatory Agents, Non-Steroidal* / chemistry
  • Anti-Inflammatory Agents, Non-Steroidal* / pharmacology
  • Disease Models, Animal
  • Hydrazines* / chemical synthesis
  • Hydrazines* / chemistry
  • Hydrazines* / pharmacology
  • Mice
  • Neuralgia / drug therapy*
  • Neuralgia / pathology

Substances

  • Analgesics
  • Anti-Inflammatory Agents, Non-Steroidal
  • Hydrazines