5-bromo-N-(3,4-dimethoxyphenyl)pentanamide | 877204-25-6

• 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: 5-bromo-N-(3,4-dimethoxyphenyl)pentanamide
• 英文别名: N-5-bromopentanoyl-3,4-dimethoxyaniline
• CAS: 877204-25-6
• 化学式: C₁₃H₁₈BrNO₃
• mdl: MFCD09031549
• 分子量: 316.195
• InChiKey: ONEPAELHJFYXNI-UHFFFAOYSA-N

物化性质

• 沸点：
  456.1±45.0 °C(Predicted)
• 密度：
  1.355±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  18
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.461
• 拓扑面积：
  47.6
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  5-bromo-N-(3,4-dimethoxyphenyl)pentanamide 在 劳森试剂 、 sodium hydride 作用下， 以 1,4-二氧六环 、 N,N-二甲基甲酰胺 为溶剂， 反应 19.0h， 生成 5-(1H-imidazol-1-yl)-N-(3,4-dimethoxyphenyl)pentanethioamide
  参考文献：
  名称：

  The First Potent Inhibitors for Human Glutaminyl Cyclase:  Synthesis and Structure−Activity Relationship

  摘要：

  The first effective inhibitors for human glutaminyl cyclase (QC) are described. The structures are developed by applying a ligand-based optimization approach starting from imidazole. Screening of derivatives of that heterocycle led to compounds of the imidazol-1-yl-alkyl thiourea type as a lead scaffold. A library of thiourea derivatives was synthesized, resulting in an inhibitory improvement by 2 orders of magnitude, leading to 1-(3-(1H-imidazol-1-yl)propyl)-3-(3,4-dimethoxyphenyl)thiourea as a potent inhibitor. Systematic exploitation of the scaffold revealed a strong impact on the inhibitory efficacy and resulted in the development of imidazole-propyl-thioamides as another new class of potent inhibitors. A flexible alignment of the most potent compounds of the thioamide and thiourea class and a QC substrate revealed a good match of characteristic features of the molecules, which suggests a similar binding mode of both inhibitors and the substrate to the active site of QC.

  DOI：

  10.1021/jm050756e
• 作为产物：
  描述：

  5-溴戊酰氯 、 3,4-二甲氧基苯胺 以 四氢呋喃 为溶剂， 反应 12.0h， 以1.43 g的产率得到5-bromo-N-(3,4-dimethoxyphenyl)pentanamide
  参考文献：
  名称：

  使用叔醇作为反应介质的容易的亲核氟化反应：显着增强了碱金属氟化物的反应性并提高了选择性

  摘要：

  尽管质子溶剂通常不优选用于亲核取代反应，因为它们具有部分正电荷和氢键合能力，可溶解亲核试剂并降低其反应性，但我们最近报道了使用叔醇作为反应介质进行亲核氟化的显着有益效果。碱金属氟化物，以及[ 18 F]氟离子对18氟进行放射性标记，以制备PET放射性药物。在这项工作中，我们进一步研究的影响叔通过研究之间的各种相互作用与碱金属氟化物亲核氟化-醇反应介质叔-醇，碱金属氟化物（CsF）和磺酰氧基底物。诸如CsF和叔醇溶剂之间的氢键，叔醇溶剂化氟化物的形成以及磺酸盐离去基团和叔醇之间的氢键等因素似乎有助于亲核试剂速率的急剧增加。在没有任何催化剂的情况下进行氟化反应。我们发现1-（2- mesyloxyethyl）萘（那氟化5）和Ñ -5-溴戊基-3,4-二甲氧基苯胺（8）配有卜4 Ñ + ˚F -在叔-醇比使用偶极非质子溶剂的常规方法获得的产率高得多，提供了相应的氟代产物。质子介质还抑制副产物的形成，例如烯烃，醚和环状加合物。

  DOI：

  10.1021/jo7021229

文献信息

• The First Potent Inhibitors for Human Glutaminyl Cyclase:  Synthesis and Structure−Activity Relationship
  作者：Mirko Buchholz、Ulrich Heiser、Stephan Schilling、André J. Niestroj、Katrin Zunkel、Hans-Ulrich Demuth

  DOI：10.1021/jm050756e

  日期：2006.1.1

  The first effective inhibitors for human glutaminyl cyclase (QC) are described. The structures are developed by applying a ligand-based optimization approach starting from imidazole. Screening of derivatives of that heterocycle led to compounds of the imidazol-1-yl-alkyl thiourea type as a lead scaffold. A library of thiourea derivatives was synthesized, resulting in an inhibitory improvement by 2 orders of magnitude, leading to 1-(3-(1H-imidazol-1-yl)propyl)-3-(3,4-dimethoxyphenyl)thiourea as a potent inhibitor. Systematic exploitation of the scaffold revealed a strong impact on the inhibitory efficacy and resulted in the development of imidazole-propyl-thioamides as another new class of potent inhibitors. A flexible alignment of the most potent compounds of the thioamide and thiourea class and a QC substrate revealed a good match of characteristic features of the molecules, which suggests a similar binding mode of both inhibitors and the substrate to the active site of QC.
• Facile Nucleophilic Fluorination Reactions Using <i>tert</i>-Alcohols as a Reaction Medium:  Significantly Enhanced Reactivity of Alkali Metal Fluorides and Improved Selectivity
  作者：Dong Wook Kim、Jeong、Seok Tae Lim、Myung-Hee Sohn、John A. Katzenellenbogen、Dae Yoon Chi

  DOI：10.1021/jo7021229

  日期：2008.2.1

  the influence of the tert-alcohol reaction medium for nucleophilic fluorination with alkali metal fluorides by studying various interactions among tert-alcohols, the alkali metal fluoride (CsF), and the sulfonyloxy substrate. Factors such as hydrogen bonding between CsF and the tert-alcohol solvent, the formation of a tert-alcohol solvated fluoride, and hydrogen bonding between the sulfonate leaving group

  尽管质子溶剂通常不优选用于亲核取代反应，因为它们具有部分正电荷和氢键合能力，可溶解亲核试剂并降低其反应性，但我们最近报道了使用叔醇作为反应介质进行亲核氟化的显着有益效果。碱金属氟化物，以及[ 18 F]氟离子对18氟进行放射性标记，以制备PET放射性药物。在这项工作中，我们进一步研究的影响叔通过研究之间的各种相互作用与碱金属氟化物亲核氟化-醇反应介质叔-醇，碱金属氟化物（CsF）和磺酰氧基底物。诸如CsF和叔醇溶剂之间的氢键，叔醇溶剂化氟化物的形成以及磺酸盐离去基团和叔醇之间的氢键等因素似乎有助于亲核试剂速率的急剧增加。在没有任何催化剂的情况下进行氟化反应。我们发现1-（2- mesyloxyethyl）萘（那氟化5）和Ñ -5-溴戊基-3,4-二甲氧基苯胺（8）配有卜4 Ñ + ˚F -在叔-醇比使用偶极非质子溶剂的常规方法获得的产率高得多，提供了相应的氟代产物。质子介质还抑制副产物的形成，例如烯烃，醚和环状加合物。