4,5-dihydro-3-(4-methoxyphenyl)-5-(methylsulfonyl)isoxazole

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: 4,5-dihydro-3-(4-methoxyphenyl)-5-(methylsulfonyl)isoxazole
• 英文别名: (R/S)-5-Methanesulfonyl-3-(4-methoxy-phenyl)-4,5-dihydro-isoxazole；3-(4-methoxyphenyl)-5-methylsulfonyl-4,5-dihydro-1,2-oxazole
• 化学式: C₁₁H₁₃NO₄S
• 分子量: 255.295
• InChiKey: SPNGBVJLFZUFFF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  73.3
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  对甲氧基苯甲醛肟 在 N-溴代丁二酰亚胺(NBS) 作用下， 以 二氯甲烷 为溶剂， 反应 1.0h， 生成 4,5-dihydro-3-(4-methoxyphenyl)-5-(methylsulfonyl)isoxazole
  参考文献：
  名称：

  KF/Al2O3：用于腈氧化物 1,3-偶极环加成反应的固体负载试剂

  摘要：

  摘要 报道了在室温下，在 N-溴代琥珀酰胺和固载试剂 KF/Al2O3 存在下，由醛肟原位生成腈氧化物的 1,3-偶极环加成反应立体选择性合成 2-异恶唑烷。KF/Al2O3 具有足够的碱性，因此它可以替代典型程序中使用的有机碱，例如 Et3N，并且它催化反应以提高反应速率。图形概要

  DOI：

  10.1080/00397911.2011.558665

文献信息

• KF/Al₂O₃: Solid-Supported Reagent Used in 1,3-Dipolar Cycloaddition Reaction of Nitrile Oxide
  作者：Monalisa Boruah、Dilip Konwar

  DOI：10.1080/00397911.2011.558665

  日期：2012.11.15

  Abstract The stereoselective synthesis of 2-isoxazolidine through 1,3-dipolar cycloaddition reaction of nitrile oxide, which is in situ generation from aldoxime in the presence of N-bromosuccinamide and solid-supported reagent KF/Al2O3 at room temperature, is reported. KF/Al2O3 is sufficiently basic such that it can replace organic bases such as Et3N used in typical procedures and it catalyses the

  摘要 报道了在室温下，在 N-溴代琥珀酰胺和固载试剂 KF/Al2O3 存在下，由醛肟原位生成腈氧化物的 1,3-偶极环加成反应立体选择性合成 2-异恶唑烷。KF/Al2O3 具有足够的碱性，因此它可以替代典型程序中使用的有机碱，例如 Et3N，并且它催化反应以提高反应速率。图形概要
• Inhibition of the Antibacterial Target UDP-(3-<i>O</i>-acyl)-<i>N</i>-acetylglucosamine Deacetylase (LpxC):  Isoxazoline Zinc Amidase Inhibitors Bearing Diverse Metal Binding Groups
  作者：Michael C. Pirrung、L. Nathan Tumey、Christian R. H. Raetz、Jane E. Jackman、Karnem Snehalatha、Amanda L. McClerren、Carol A. Fierke、Stephanie L. Gantt、Kristin M. Rusche

  DOI：10.1021/jm020183v

  日期：2002.9.1

  UDP-3-O-[R-3-hydroxymyristoyl]-GlcNAc deacetylase (LpxC) is a zinc amidase that catalyzes the second step of lipid A biosynthesis in Gram negative bacteria. Known inhibitors of this enzyme are oxazolines incorporating a hydroxamic acid at the 4-position, which is believed to coordinate to the single essential zinc ion. A new structural class of inhibitors was designed to incorporate a more stable and more synthetically. versatile isoxazoline core. The synthetic versatility of the isoxazoline allowed for a broad study of metal binding. groups. Nine of 17 isoxazolines, each incorporating a different potential metal binding functional group, were found to exhibit enzyme inhibitory activity, including one that is more active than the corresponding hydroxamic acid. Additionally, a designed affinity label inhibits LpxC in a time-dependent manner.
• Synthesis, crystal structure, and in vitro antiprotozoal activity of some 5-phenyl(methyl)sulfonyl-substituted dihydroisoxazoles
  作者：Yaşar Dürüst、Cevher Altuğ、Marcel Kaiser、Frank R. Fronczek、Deniz Tasdemir

  DOI：10.1007/s00706-012-0866-6

  日期：2013.5

  4,5-Dihydroisoxazole derivatives are interesting synthetic targets that exhibit various biological activities, including anti-infective. Taking account of the principle of bioisosterism, a number of 4,5-dihydroisoxazoles carrying a phenyl- (or methyl-)sulfonyl group at position 5 were designed and synthesized by 1,3-dipolar cycloaddition of nitrolic acid-generated nitrile oxides with electron-deficient phenyl (or methyl) vinyl sulfones. The structures of all the cycloadducts were elucidated by means of spectroscopic methods (NMR, MS), X-ray diffraction, and physical characteristics. The in vitro antiprotozoal and cytotoxic activities of these heterocyclic compounds were investigated.