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

A Scalable Synthesis of the Difluoromethyl-allo-threonyl Hydroxamate-Based LpxC Inhibitor LPC-058.
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DOI:
10.1021/acs.joc.6b00589
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发表时间:
2016-05-20
影响因子:
3.6
通讯作者:
Zhou, Pei
Zhou, Pei
中科院分区:
化学2区
文献类型:
--
作者:
Liang, Xiaofei;Gopalaswamy, Ramesh;Navas, Frank, III;Toone, Eric J.;Zhou, Pei

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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.
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