N–O Chemistry for Antibiotics: Discovery of <i>N</i>-Alkyl-<i>N</i>-(pyridin-2-yl)hydroxylamine Scaffolds as Selective Antibacterial Agents Using Nitroso Diels–Alder and Ene Chemistry
作者:Timothy A. Wencewicz、Baiyuan Yang、James R. Rudloff、Allen G. Oliver、Marvin J. Miller
DOI:10.1021/jm200794r
日期:2011.10.13
The discovery, syntheses, and structure–activity relationships (SAR) of a new family of heterocyclic antibacterial compounds based on N-alkyl-N-(pyridin-2-yl)hydroxylamine scaffolds are described. A structurally diverse library of ∼100 heterocyclic molecules generated from Lewis acid-mediated nucleophilic ring-opening reactions with nitroso Diels–Alder cycloadducts and nitroso ene reactions with substituted
Iminonitroso ene reactions: experimental studies on reactivity, regioselectivity, and enantioselectivity
作者:Baiyuan Yang、Marvin J. Miller
DOI:10.1016/j.tetlet.2009.11.015
日期:2010.1
Enereactions of iminonitroso agents with olefins were investigated in both solution and solid phase. Reactions afforded allyl hydroxylamine products in up to 99% yield and with high regioselectivity. A Cu(I)-mediated enantioselective nitroso enereaction gave an ene product with up to 40% ee.
在溶液和固相中研究了亚氨基亚硝基试剂与烯烃的烯反应。反应以高达 99% 的产率和高区域选择性提供了烯丙基羟胺产物。Cu(I) 介导的对映选择性亚硝基烯反应产生具有高达 40% ee 的烯产物。