Synthesis of 3-furanyl-4,5-dihydroisoxazole Derivatives via Cycloaddition and their Antibacterial Evaluation
作者:Gabriela de Andrade Danin Barbosa、Alcino Palermo de Aguiar、Erika Martins de Carvalho、Joseli Maria da Rocha Nogueira
DOI:10.2174/1570180815666180627115606
日期:2019.1.15
threat to human health. So this manuscript describes the synthesis of five different 3,5-disubstituted 4,5-dihydroisoxazoles with antimicrobial activity. Methods: They were obtained from nitrile oxide cycloaddition derived from 2-furaldehyde and 5- nitro-2-furaldehyde to different dipolarophiles (acrylamide, ethyl acrylate and styrene). All heterocycles were isolated (30-50 %) and characterized by FTIR
背景:抗菌素耐药性是对人类健康的主要威胁。因此,该手稿描述了具有抗菌活性的五种不同的3,5-二取代的4,5-二氢异恶唑的合成。 方法:它们是由2-呋喃醛和5-硝基-2-呋喃醛与一氧化氮环加成到不同的双亲性化合物(丙烯酰胺,丙烯酸乙酯和苯乙烯)中制得的。分离了所有杂环(30-50%),并通过FTIR,MS,1H和13C NMR进行了表征,因为它们还针对革兰氏阳性和革兰氏阴性细菌进行了评估。 结果与结论:所有产品均具有对所有细菌的生物活性,但是杂环3-(5-硝基-2-呋喃基)-5-羧酰胺-4,5-二氢异恶唑(6b)的最低抑菌浓度最低( MIC-14 µg / mL)。