Diversity oriented clicking delivers β-substituted alkenyl sulfonyl fluorides as covalent human neutrophil elastase inhibitors

Yunfei Cheng, Gencheng Li, Christopher J. Smedley, Marie Claire Giel, Seiya Kitamura, Jordan L. Woehl, Giulia Bianco, Stefano Forli, Joshua A. Homer, John R. Cappiello, Dennis W. Wolan, John E. Moses, K. Barry Sharpless

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Diversity Oriented Clicking (DOC) is a discovery method geared toward the rapid synthesis of functional libraries. It combines the best attributes of both classical and modern click chemistries. DOC strategies center upon the chemical diversification of core “SuFExable” hubs—exemplified by 2-Substituted-Alkynyl-1-Sulfonyl Fluorides (SASFs)—enabling the modular assembly of compounds through multiple reaction pathways. We report here a range of stereoselective Michael-type addition pathways from SASF hubs including reactions with secondary amines, carboxylates, 1H-1,2,3-triazole, and halides. These high yielding conjugate addition pathways deliver unprecedented β-substituted alkenyl sulfonyl fluorides as single isomers with minimal purification, greatly enriching the repertoire of DOC and holding true to the fundamentals of modular click chemistry. Further, we demonstrate the potential for biological function – a key objective of click chemistry – of this family of SASF-derived molecules as covalent inhibitors of human neutrophil elastase.

Original languageEnglish (US)
Article numbere2208540119
JournalProceedings of the National Academy of Sciences of the United States of America
Volume119
Issue number37
DOIs
StatePublished - Sep 13 2022
Externally publishedYes

Keywords

  • covalent inhibitor
  • Diversity Oriented Clicking
  • human neutrophil elastase
  • Michael addition
  • SuFEx

ASJC Scopus subject areas

  • General

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