3,5-Dibrom-3-methyl-salicylsaeure-(4-methyl-anilid)

• 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: 3,5-Dibrom-3-methyl-salicylsaeure-(4-methyl-anilid)
• 英文别名: 3,5-dibromo-2-hydroxy-N-(4-methylphenyl)benzamide
• 化学式: C₁₄H₁₁Br₂NO₂
• 分子量: 385.055
• InChiKey: NBHHAFCAAMDPSL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.7
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  49.3
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3,5-Dibrom-3-methyl-salicylsaeure-(4-methyl-anilid) 、 氯甲酸乙酯 以 吡啶 为溶剂， 反应 1.0h， 以91%的产率得到6,8-Dibromo-3-(p-tolyl)-1,3-benzoxazine-2,4-dione
  参考文献：
  名称：

  抗分枝杆菌物质的化学结构与其对非典型菌株的活性之间的关系。第 14 部分：3-Aryl-6,8-dihalo-2H-1,3-benzoxazine-2,4 (3H) -diones

  摘要：

  6,8-二氯-3-苯基-2H-苯并恶嗪-2,4(3H)-二酮的八种衍生物和6,8-二溴-3-苯基-2H-1,3-苯并恶嗪-的九种衍生物苯环上取代的 2,4 (3H)-二酮是通过相应的水杨酰苯胺与氯甲酸乙酯反应制备的。在体外评估了这些化合物对结核分枝杆菌、堪萨斯分枝杆菌和鸟分枝杆菌的抗分枝杆菌活性。它们的活性随着苯环上取代基的疏水性和吸电子能力的增加而增加。

  DOI：

  10.1002/(sici)1521-4184(199801)331:1<3::aid-ardp3>3.0.co;2-2
• 作为产物：
  描述：

  3,5-二氯水杨酸 在 草酰氯 、 三乙胺 、 N,N-二甲基甲酰胺 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 2.0h， 生成 3,5-Dibrom-3-methyl-salicylsaeure-(4-methyl-anilid)
  参考文献：
  名称：

  Design, Synthesis, and Biological Activities of Closantel Analogues: Structural Promiscuity and Its Impact on Onchocerca volvulus

  摘要：

  Onchocerciasis, or river blindness, is a neglected tropical disease that affects more than 37 million people worldwide, primarily in Africa and Central and South America. We have disclosed evidence that the larval-stage-specific chitinase, OvCHT1, may be a potential biological target for affecting nematode development. On the basis of screening efforts, closantel, a known anthelmintic drug, was discovered as a potent and highly specific OvCHT1 inhibitor. Originally, closantel's anthelmintic mode of action was believed to rely solely on its role as a proton ionophore; thus, the impact of each of its biological activities on O. volvulus L3 molting was investigated. Structure activity relationship studies on an active closantel fragment are detailed, and remarkably, by use of a simple salicylanilide scaffold, compounds acting only as protonophores or chitinase inhibitors were identified. From these data, unexpected synergistic protonophore and chitinase inhibition activities have also been found to be critical for molting in O. volvulus L3 larvae.

  DOI：

  10.1021/jm200364n

文献信息

• 5-Bromo- and 3,5-dibromo-2-hydroxy-N-phenylbenzamides — inhibitors of photosynthesis
  作者：Katarína Kráľová、František Šeršeň、Matúš Peško、Karel Waisser、Lenka Kubicová

  DOI：10.2478/s11696-013-0416-7

  日期：2014.1.1

  5-Bromo-(Br-PBA) and 3,5-dibromo-2-hydroxy-N-phenylbenzamides (Br2-PBA) inhibited photosynthetic electron transport (PET) and their inhibitory efficiency depended on the compound lipophilicity as well as on the electronic properties of the R substituent in the N-phenyl moiety. Br-PBA showed higher PET inhibiting activity than Br2-PBA with the same R substituent. The most effective inhibitors in the tested series were the derivatives with R = 3-F (Br-PBA; IC50 = 4.3 μmol dm−3) and R = 3-Cl (Br2-PBA; IC50 = 8.6 μmol dm−3). Bilinear dependence of the PET inhibiting activity on the lipophilicity of the compounds as well as on the Hammett constant, σ, of the R substituent was observed for both investigated series. Using EPR spectroscopy it was found that the site of action of the tested compounds in the photosynthetic apparatus is situated on the donor side of PS 2, in D· or in the Z·/D· intermediates. Interaction of the studied compounds with chlorophyll a and aromatic amino acids present in the pigment-protein complexes mainly in photosystem 2 was documented by fluorescence spectroscopy.

  摘要：5-溴-(Br-PBA)和3,5-二溴-2-羟基-N-苯基苯甲酰胺（Br2-PBA）抑制了光合作用电子传递（PET），它们的抑制效率取决于化合物的亲脂性以及N-苯基基团中R取代基的电子性质。Br-PBA表现出比具有相同R取代基的Br2-PBA更高的PET抑制活性。在测试系列中，具有R = 3-F（Br-PBA; IC50 = 4.3 μmol dm−3）和R = 3-Cl（Br2-PBA; IC50 = 8.6 μmol dm−3）的衍生物是最有效的抑制剂。对于两个研究系列，观察到了PET抑制活性与化合物的亲脂性以及R取代基的Hammett常数σ之间的双线性依赖关系。使用EPR光谱学发现，测试化合物在光合作用器官中的作用位点位于PS 2的给体侧，在D·或在Z·/D·中间体中。通过荧光光谱学证明了研究化合物与叶绿素a和存在于色素蛋白复合物中的芳香氨基酸的相互作用主要发生在光系统2中。
• Relationships Between the Chemical Structure of Antimycobacterial Substances and Their Activity Against Atypical Strains. Part 14: 3-Aryl-6,8-dihalogeno-2H-1,3-benzoxazine-2,4(3H)-diones
  作者：Karel Waisser、Jana Hladuvková、Jirí Gregor、Tomáš Rada、Lenka Kubicová、Vera Klimešová、Jarmila Kaustová

  DOI：10.1002/(sici)1521-4184(199801)331:1<3::aid-ardp3>3.0.co;2-2

  日期：1998.1

  6,8‐dibromo‐3‐phenyl‐2H‐1,3‐benzoxazine‐2,4(3H)‐dione, substituted on the phenyl ring, was prepared by the reaction of the corresponding salicylanilides with ethyl chloroformate. The compounds were evaluated in vitro for antimycobacterial activity against Mycobacterium tuberculosis, Mycobacterium kansasii, and Mycobacterium avium. Their activity increases with increasing hydrophobicity and electron‐withdrawing

  6,8-二氯-3-苯基-2H-苯并恶嗪-2,4(3H)-二酮的八种衍生物和6,8-二溴-3-苯基-2H-1,3-苯并恶嗪-的九种衍生物苯环上取代的 2,4 (3H)-二酮是通过相应的水杨酰苯胺与氯甲酸乙酯反应制备的。在体外评估了这些化合物对结核分枝杆菌、堪萨斯分枝杆菌和鸟分枝杆菌的抗分枝杆菌活性。它们的活性随着苯环上取代基的疏水性和吸电子能力的增加而增加。
• Design, Synthesis, and Biological Activities of Closantel Analogues: Structural Promiscuity and Its Impact on <i>Onchocerca volvulus</i>
  作者：Amanda L. Garner、Christian Gloeckner、Nancy Tricoche、Joseph S. Zakhari、Moses Samje、Fidelis Cho-Ngwa、Sara Lustigman、Kim D. Janda

  DOI：10.1021/jm200364n

  日期：2011.6.9

  Onchocerciasis, or river blindness, is a neglected tropical disease that affects more than 37 million people worldwide, primarily in Africa and Central and South America. We have disclosed evidence that the larval-stage-specific chitinase, OvCHT1, may be a potential biological target for affecting nematode development. On the basis of screening efforts, closantel, a known anthelmintic drug, was discovered as a potent and highly specific OvCHT1 inhibitor. Originally, closantel's anthelmintic mode of action was believed to rely solely on its role as a proton ionophore; thus, the impact of each of its biological activities on O. volvulus L3 molting was investigated. Structure activity relationship studies on an active closantel fragment are detailed, and remarkably, by use of a simple salicylanilide scaffold, compounds acting only as protonophores or chitinase inhibitors were identified. From these data, unexpected synergistic protonophore and chitinase inhibition activities have also been found to be critical for molting in O. volvulus L3 larvae.