Design, synthesis and biological evaluation of piperazino-enaminones as novel suppressants of pro-Inflammatory cytokines

Ola M. Ghoneim, Ashley Bill, Jyothi Dhuguru, Doreen E. Szollosi, Ivan O. Edafiogho

Research output: Contribution to journalArticle

4 Scopus citations


Infection triggers the release of pro-inflammatory cytokines (TNF-alpha and IL-6). Over-production, however, cause tissue injury seen in severe asthma. The ability of enaminone E121 to reduce pro-inflammatory cytokines in our laboratory encouraged further examination of its structural scaffold. Piperazino-enaminones were designed by incorporating n-arylpiperazine motif into the aromatic enaminone. Four possible modifications were explored systematically. Synthesis was accomplished by amination of the corresponding methyl/ethyl 2,4-dioxo-6-(substituted)cyclohexane-carboxylate. Sixteen novel compounds were synthesized. Biological activity was tested in J774 macrophages stimulated with lipopolysaccharides. The release of cytokines was measured via ELISA. Four compounds significantly suppressed TNF-alpha and IL-6 release in dose-dependent manner.

Original languageEnglish (US)
JournalBioorganic and Medicinal Chemistry
StateAccepted/In press - Jan 1 2018



  • Cytokines
  • Design
  • Inflammation
  • Pro-inflammatory
  • Synthesis

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Medicine
  • Molecular Biology
  • Pharmaceutical Science
  • Drug Discovery
  • Clinical Biochemistry
  • Organic Chemistry

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