3-amino-4-(4-fluorophenyl)-furazan

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 3-amino-4-(4-fluorophenyl)-furazan
• 英文别名: 3-amino-4-(4-fluorophenyl)furazane；3-amino-4-(4-fluorophenyl)furazan；4-(4-Fluorophenyl)-1,2,5-oxadiazol-3-amine
• 化学式: C₈H₆FN₃O
• mdl: MFCD08061130
• 分子量: 179.154
• InChiKey: ZCPNLNCQHQETKZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  13
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  64.9
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  3-amino-4-(4-fluorophenyl)-furazan 在 nitrosonium tetrafluoroborate 、 溶剂黄146 、 zinc(II) chloride 作用下， 以 三氟乙酸 为溶剂， 生成 3-(4-(4-fluorophenyl)-1,2,5-oxadiazol-3-yl)-1,2,3,4-oxatriazol-3-ium-5-olate
  参考文献：
  名称：

  Antiaggregant effects of (1,2,5‐oxadiazolyl)azasydnone ring assemblies as novel antiplatelet agents

  摘要：

  AbstractA series of biheterocyclic assemblies comprising of 1,2,5‐oxadiazole and azasydnone scaffolds were synthesized and biologically evaluated as novel nitric oxide (NO)‐donor and antiplatelet agents. Depending on functional substituents at the biheterocyclic core, all studied compounds demonstrated good NO‐donor profiles releasing NO in a wide range of concentrations (19.2%–195.1%) according to a Griess assay. (1,2,5‐Oxadiazolyl)azasydnones showed excellent antiplatelet activity in the case of ADP and adrenaline used as inducers completely suppressing the aggregate formation even at the lowest test concentration of 0.0375 μmol/ml, which is a rather unique feature. Moreover, studied biheterocycles possess a selective mechanism of inhibition of platelet aggregation mediated only by ADP and adrenaline, which are considered to be the main inducers causing thrombus formation. In addition, (1,2,5‐oxadiazolyl)azasydnones were found to be completely non‐toxic to hybrid endothelial cells EaHy 926. Studies of hydrolytic degradation of the synthesized compounds afforded benzoic acid as a sole detectable decomposition product, which is considered advantageous in drug design. Therefore, (1,2,5‐oxadiazolyl)azasydnones represent a novel class of promising drug candidates with improved antiplatelet profile and reduced toxicity enabling their huge potential in medicinal chemistry and drug design.

  DOI：

  10.1111/cbdd.13918
• 作为产物：
  描述：

  4-氟苯甲酰乙酸甲酯 以67%的产率得到3-amino-4-(4-fluorophenyl)-furazan
  参考文献：
  名称：

  One-pot synthesis of 3-amino-4-aryl- and 3-amino-4-hetarylfurazans

  摘要：

  开发了一种“一锅法”合成3-氨基-4-芳基和3-氨基-4-杂芳基呋咱的方法，该方法利用β-芳基和4-β-杂芳基-β-氧代酸酯。

  DOI：

  10.1007/s11172-005-0359-4

文献信息

• N-Oxide-Controlled Chemoselective Reduction of Nitrofuroxans
  作者：Leonid Fershtat、Dmitry Bystrov、Egor Zhilin、Nina Makhova

  DOI：10.1055/s-0037-1611056

  日期：2019.2

  A facile and chemoselective SnCl2-mediated mild reduction of regioisomeric 3- and 4-nitrofuroxans for the synthesis of amino­furazans and aminofuroxans in good yields is developed. Reduction of 4-nitrofuroxans results in the selective formation of 4-aminofuroxans, while analogous reduction of 3-nitrofuroxans affords 3-aminofurazans as a result of simultaneous reduction of the nitro group and exocyclic N–O bond.

  通过SnCl2介导的温和还原法，成功合成了氨基呋喃和氨基呋喃酮，产率良好。对4-硝基呋喃酮的还原导致选择性形成4-氨基呋喃酮，而对3-硝基呋喃酮的类似还原则通过同时还原硝基团和外环N-O键形成3-氨基呋喃酮。
• Straightforward Access to the Nitric Oxide Donor Azasydnone Scaffold by Cascade Reactions of Amines
  作者：Egor S. Zhilin、Dmitry M. Bystrov、Ivan V. Ananyev、Leonid L. Fershtat、Nina N. Makhova

  DOI：10.1002/chem.201903526

  日期：2019.11.13

  construction strategy involves a diazotization/azo coupling/elimination/double rearrangement cascade sequence of readily available amines. The current protocol enables the generation of a diverse array of azasydnones, including previously hardly accessible heteroaryl substituted azasydnones (25 examples, 70-97 % yield) with a good functional group tolerance under very mild conditions. Preliminary NO-releasing

  已开发出一种新颖的一锅级联方法，用于组装有价值的NO供体氮杂氮酮骨架。该构建策略涉及容易获得的胺的重氮化/偶氮偶合/消除/双重排级联序列。当前的方案使得能够生成多种阵列的氮杂氨醛酮，包括先前难以接近的杂芳基取代的氮杂氨醛酮（25个实例，产率为70-97％），并且在非常温和的条件下具有良好的官能团耐受性。初步的NO释放研究表明，氮杂syndones能够在很宽的浓度范围内产生NO。该方法为氮-氧杂环化合物的开发提供了一种新方法，在医学和材料科学领域具有潜在的应用前景。
• A mild and efficient synthesis of aminofurazans
  作者：Aleksei B. Sheremetev、Andrei S. Kozeev、Nadezhda V. Palysaeva、Kyrill Yu. Suponitsky

  DOI：10.1039/d3nj03371f

  日期：——

  An efficient, one-pot protocol for the synthesis of aminofurazans from readily available and inexpensive bromomethyl ketones has been developed. Alkyl, aryl and heteroaryl aminofurazans have been synthesized and characterized by multinuclear NMR and single crystal X-ray crystallography.

  已经开发出一种有效的一锅法，用于从容易获得且廉价的溴甲基酮合成氨基呋喃。烷基、芳基和杂芳基氨基呋喃已被合成并通过多核NMR和单晶X射线晶体学进行表征。
• Structure–Activity Relationships and Antiplasmodial Potencies of Novel 3,4-Disubstituted 1,2,5-Oxadiazoles
  作者：Patrick Hochegger、Theresa Hermann、Johanna Dolensky、Werner Seebacher、Robert Saf、Eva-Maria Pferschy-Wenzig、Marcel Kaiser、Pascal Mäser、Robert Weis

  DOI：10.3390/ijms241914480

  日期：——

  The 4-substituted 3-amino-1,2,5-oxadiazole 1 from the Malaria Box Project of the Medicines for Malaria Venture foundation shows very promising selectivity and in vitro activity against Plasmodium falciparum. Within the first series of new compounds, various 3-acylamino analogs were prepared. This paper now focuses on the investigation of the importance of the aromatic substituent in ring position 4

  来自疟疾风险药物基金会疟疾盒项目的 4-取代 3-氨基-1,2,5-恶二唑 1 显示出非常有前景的对抗恶性疟原虫的选择性和体外活性。在第一批新化合物中，制备了各种 3-酰氨基类似物。本文现在重点研究环4位芳香族取代基的重要性。阐述了许多新的结构-活性关系，表明抗疟原虫活性和选择性强烈依赖于4-苯基部分的取代模式。此外，计算了与药物开发相关的物理化学参数（logP和配体效率）或通过实验确定（CYP3A4抑制和水溶性）。N-[4-(3-乙氧基-4-甲氧基苯基)-1,2,5-恶二唑-3-基]-3-甲基苯甲酰胺 51 对恶性疟原虫氯喹敏感菌株 NF54 (PfNF54 IC50 = 0.034 µM），产生非常有前景的选择性指数 1526。
• A Direct Approach to a 6-Hetarylamino[1,2,4]triazolo[4,3-<i>b</i>][1,2,4,5]tetrazine Library
  作者：Nadezhda V. Palysaeva、Katerina P. Kumpan、Marina I. Struchkova、Igor L. Dalinger、Aleksandr V. Kormanov、Nataly S. Aleksandrova、Victor M. Chernyshev、Dmitrii F. Pyreu、Kyrill Yu. Suponitsky、Aleksei B. Sheremetev

  DOI：10.1021/ol403308h

  日期：2014.1.17

  The synthesis of 6-hetarylamino[1,2,4]triazolo[4,3-b][1,2,4,5]tetrazines is reported. The functionalized secondary amines were constructed via a K2CO3-mediated SNAr reaction of weakly basic hetarylamines with 3-(3,5-dimethylpyrazol-1-yl)[1,2,4]triazolo[4,3-b][1,2,4,5]tetrazines, which allowed displacement 3,5-dimethylpyrazolyl leaving group. Significantly, the reaction exhibited a broad substrate scope and proceeded in good yields.