A Scalable Synthesis of the Difluoromethyl-allo-threonyl Hydroxamate-Based LpxC Inhibitor LPC-058.

Journal Article (Journal Article)

The difluoromethyl-allo-threonyl hydroxamate-based compound LPC-058 is a potent inhibitor of UDP-3-O-(R-3-hydroxymyristoyl)-N-acetylglucosamine deacetylase (LpxC) in Gram-negative bacteria. A scalable synthesis of this compound is described. The key step in the synthetic sequence is a transition metal/base-catalyzed aldol reaction of methyl isocyanoacetate and difluoroacetone, giving rise to 4-(methoxycarbonyl)-5,5-disubstituted 2-oxazoline. A simple NMR-based determination of enantiomeric purity is also described.

Full Text

Duke Authors

Cited Authors

  • Liang, X; Gopalaswamy, R; Navas, F; Toone, EJ; Zhou, P

Published Date

  • May 20, 2016

Published In

Volume / Issue

  • 81 / 10

Start / End Page

  • 4393 - 4398

PubMed ID

  • 27128325

Pubmed Central ID

  • PMC5164921

Electronic International Standard Serial Number (EISSN)

  • 1520-6904

Digital Object Identifier (DOI)

  • 10.1021/acs.joc.6b00589


  • eng

Conference Location

  • United States