Novel piperidine-derived amide sEH inhibitors as mediators of lipid metabolism with improved stability

Stevan Pecic, Amir A. Zeki, Xiaoming Xu, Gina Y. Jin, Shuwei Zhang, Sean Kodani, Marlin Halim, Christophe H Morisseau, Bruce D Hammock, Shi Xian Deng

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

We have previously identified and reported several potent piperidine-derived amide inhibitors of the human soluble epoxide hydrolase (sEH) enzyme. The inhibition of this enzyme leads to elevated levels of epoxyeicosatrienoic acids (EETs), which are known to possess anti-inflammatory, vasodilatory, and anti-fibrotic effects. Herein, we report the synthesis of 9 analogs of the lead sEH inhibitor and the follow-up structure-activity relationship and liver microsome stability studies. Our findings show that isosteric modifications that lead to significant alterations in the steric and electronic properties at a specific position in the molecule can reduce the efficacy by up to 75-fold. On the other hand, substituting hydrogen with deuterium produces a notable increase (∼30%) in the molecules’ half-lives in both rat and human microsomes, while maintaining sEH inhibition potency. These data highlight the utility of isosteric replacement for improving bioavailability, and the newly-synthesized inhibitor structures may thus, serve as a starting point for preclinical development. Our docking study reveals that in the catalytic pocket of sEH, these analogs are in proximity of the key amino acids involved in hydrolysis of EETs.

Original languageEnglish (US)
JournalProstaglandins and Other Lipid Mediators
DOIs
StateAccepted/In press - Jan 1 2018

Keywords

  • Isosteres
  • Liver microsomal stability assay
  • Non-urea sEH inhibitors
  • Soluble epoxide hydrolase (sEH)
  • Structure activity relationship (SAR) study

ASJC Scopus subject areas

  • Biochemistry
  • Physiology
  • Pharmacology
  • Cell Biology

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  • Cite this

    Pecic, S., Zeki, A. A., Xu, X., Jin, G. Y., Zhang, S., Kodani, S., Halim, M., Morisseau, C. H., Hammock, B. D., & Deng, S. X. (Accepted/In press). Novel piperidine-derived amide sEH inhibitors as mediators of lipid metabolism with improved stability. Prostaglandins and Other Lipid Mediators. https://doi.org/10.1016/j.prostaglandins.2018.02.004