Function-Oriented and Modular (+/−)-cis-Pseudoguaianolide Synthesis: Discovery of New Nrf2 Activators and NF-κB Inhibitors

Fabien Emmetiere, Ranjala Ratnayake, Henry A.M. Schares, Katherine F.M. Jones, Emily Bevan–Smith, Hendrik Luesch, Daniel A. Harki, Alexander J. Grenning

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Described herein is a function-oriented synthesis route and biological evaluation of pseudoguaianolide analogues. The 10-step synthetic route developed retains the topological complexity of the natural product, installs functional handles for late-stage diversification, and forges the key bioactive Michael acceptors early in the synthesis. The analogues were found to be low-micromolar Nrf2 activators and micromolar NF-κB inhibitors and dependent on the local environment of the Michael acceptor moieties.

Original languageEnglish (US)
Pages (from-to)5564-5571
Number of pages8
JournalChemistry - A European Journal
Issue number17
StatePublished - Mar 22 2021

Bibliographical note

Funding Information:
This material is based upon work supported by National Science Foundation Grant 1844443. The authors thank the College of Liberal Arts and Sciences and the Department of Chemistry at the University of Florida for start‐up funds and the Mass Spectrometry Research and Education Center and its funding source (National Institutes of Health S10 OD021758‐01A1). DAH gratefully acknowledges the National Institutes of Health (R01‐GM110129). KFMJ thanks the National Science Foundation Graduate Research Fellowship Program. We also acknowledge National Institutes of Health grant R01CA172310 (HL) and R50CA211487 (RR) and the Debbie and Sylvia DeSantis Chair professorship (HL) for partial support and A. Dinkova‐Kostova for the isogenic MEF cells.

Publisher Copyright:
© 2021 Wiley-VCH GmbH


  • NF-κB inhibitors
  • Nrf2 activators
  • enyne metathesis
  • modular synthesis
  • pseudoguaianolides

PubMed: MeSH publication types

  • Journal Article


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