3-bromo-4-nitrobenzyl bromide | 142906-81-8

• 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-bromo-4-nitrobenzyl bromide
• 英文别名: 2-bromo-1-(bromomethyl)-4-nitrobenzene；2-bromo-4-bromomethyl-1-nitro-benzene；2-bromo-4-(bromomethyl)-1-nitrobenzene
• CAS: 142906-81-8
• 化学式: C₇H₅Br₂NO₂
• 分子量: 294.93
• InChiKey: GHBGKPDIONTEOJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  45.8
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3-bromo-4-nitrobenzyl bromide 在 吗啉 、 lithium aluminium tetrahydride 、 四(三苯基膦)钯 、 potassium peroxymonosulfate 、 potassium carbonate 作用下， 以 四氢呋喃 、 乙醇 、 正己烷 、 二氯甲烷 、 水 、 异丙醇 、 丙酮 为溶剂， 反应 33.0h， 生成
  参考文献：
  名称：

  Discovery of Cyclic Sulfone Hydroxyethylamines as Potent and Selective β-Site APP-Cleaving Enzyme 1 (BACE1) Inhibitors: Structure-Based Design and in Vivo Reduction of Amyloid β-Peptides

  摘要：

  Structure-based design of a series of cyclic hydroxyethylamine BACE1 inhibitors allowed the rational incorporation of prime- and nonprime-side fragments to a central core template without any amide functionality. The core scaffold selection and the structure activity relationship development were supported by molecular modeling studies and by X-ray analysis of BACE1 complexes with various ligands to expedite the optimization of the series. The direct extension from P1-aryl- and heteroaryl moieties into the S3 binding pocket allowed the enhancement of potency and selectivity over cathepsin D. Restraining the design and synthesis of compounds to a physicochemical property space consistent with central nervous system drugs led to inhibitors with improved blood brain barrier permeability. Guided by structure-based optimization, we were able to obtain highly potent compounds such as 60p with enzymatic and cellular IC50 values of 2 and 50 nM, respectively, and with >200-fold selectivity over cathepsin D. Pharmacodynamic studies in APPS1/16 transgenic mice at oral doses of 180 mu mol/kg demonstrated significant reduction of brain A beta levels.

  DOI：

  10.1021/jm300069y
• 作为产物：
  描述：

  2-溴-4-甲基-1-硝基苯 在 N-溴代丁二酰亚胺(NBS) 、 偶氮二异丁腈 作用下， 以 四氯化碳 为溶剂， 反应 16.0h， 生成 3-bromo-4-nitrobenzyl bromide
  参考文献：
  名称：

  Design, synthesis and structure–activity relationships of novel phenylalanine-based amino acids as kainate receptors ligands

  摘要：

  A new series of carboxyaryl-substituted phenylalanines was designed, synthesized and pharmacologically characterized in vitro at native rat ionotropic glutamate receptors as well as at cloned homomeric kainate receptors GluK1-GluK3. Among them, six compounds bound to GluK1 receptor subtypes with reasonable affinity (K-1 values in the range of 4.9-7.5 mu M). A structure-activity relationship (SAR) for the obtained series, focused mainly on the pharmacological effect of structural modifications in the 4- and 5-position of the phenylalanine ring, was established. To illustrate the results, molecular docking of the synthesized series to the X-ray structure of GluK1 ligand binding core was performed. The influence of individual substituents at the phenylalanine ring for both the affinity and selectivity at AMPA, GluK1 and GluK3 receptors was analyzed, giving directions for future studies. (C) 2016 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2016.09.075

文献信息

• AMINOBENZYL-SUBSTITUTED CYCLIC SULFONES USEFUL AS BACE INHIBITORS
  申请人：Briard Emmanuelle

  公开号：US20090054427A1

  公开（公告）日：2009-02-26

  The invention relates to novel heterocyclic compounds of the formula in which all of the variables are as defined in the specification, in free form or in salt form, to their preparation, to their use as medicaments and to medicaments comprising them.

  这项发明涉及到新型杂环化合物的公式，其中所有变量如规范中定义，以自由形式或盐形式存在，以及它们的制备方法，作为药物的用途，以及包含它们的药物。
• N-1 and C-2 substituted tryptophans as potential inhibitors of sickle cell hemoglobin gelation
  作者：Noojaree Prasitpan、Jayeshkumar N. Patel、Philomen Z. De Croos、Brenda L. Stockwell、Parthasarathy Manavalan、Leela Kar、Michael E. Johnson、Bruce L. Currie

  DOI：10.1002/jhet.5570290210

  日期：1992.3

  A series of N-1 or C-2 phenylalkyl substituted tryptophans and C-1 phenylalkyl substituted 3,4-dihydro-β-carbolines were prepared from the apropriate aniline, 1b or 1e, or tryptophan, 8 or 11, by ring closure methods. None of the compounds prepared were more potent than 5-bromotryptophan (11) as inhibitors of sickle cell hemoglobin gelation.

  由适当的苯胺1b或1e或色氨酸8或11通过闭环法制备一系列N-1或C-2苯基烷基取代的色氨酸和C-1苯基烷基取代的3,4-二氢-β-咔啉。作为镰状细胞血红蛋白胶凝抑制剂，所制备的化合物均没有比5-溴色氨酸（11）更有效的化合物。
• Enantioselective Construction of Multi-Nitrogen-Containing Spirocycles: Asymmetric [3+2] Annulation of 4-Isothiocyanato­pyrazolones with Azodicarboxylates
  作者：Baomin Wang、Shiqiang Wei、Wenyao Wang、Aiqi Xue、Shah Nawaz、Jingping Qu

  DOI：10.1055/a-1672-5707

  日期：2022.3

  The 4-isothiocyanatopyrazolones were exploited as a class of efficient synthons for the construction of triazoline derivatives via asymmetric [3+2] annulation with azodicarboxylates, providing a wide range of structurally diverse multi-nitrogen-containing spirocycles in excellent yields (up to 97%) with excellent enantioselectivities (up to 97% ee).

  摘要：4-异硫氰基吡唑酮被利用作为一类高效的合成子，通过与偶氮二酸酯的不对称[3+2]环化反应，构建三唑啉衍生物，以极高的收率（高达97%）和极好的对映选择性（高达97% ee）提供了一系列结构多样的含多个氮原子的螺环化合物。
• [EN] AMINOBENZYL-SUBSTITUTED CYCLIC SULFONES USEFUL AS BACE INHIBITORS<br/>[FR] SULFONES CYCLIQUES SUBSTITUÉES PAR AMINO-BENZYLE, UTILES EN TANT QU'INHIBITEURS DE BACE
  申请人：NOVARTIS AG

  公开号：WO2009024615A1

  公开（公告）日：2009-02-26

  The invention relates to novel heterocyclic compounds of the formula in which all of the variables are as defined in the specification, in free form or in salt form, to their preparation, to their use as medicaments and to medicaments comprising them.
• Discovery of Cyclic Sulfone Hydroxyethylamines as Potent and Selective β-Site APP-Cleaving Enzyme 1 (BACE1) Inhibitors: Structure-Based Design and in Vivo Reduction of Amyloid β-Peptides
  作者：Heinrich Rueeger、Rainer Lueoend、Olivier Rogel、Jean-Michel Rondeau、Henrik Möbitz、Rainer Machauer、Laura Jacobson、Matthias Staufenbiel、Sandrine Desrayaud、Ulf Neumann

  DOI：10.1021/jm300069y

  日期：2012.4.12

  Structure-based design of a series of cyclic hydroxyethylamine BACE1 inhibitors allowed the rational incorporation of prime- and nonprime-side fragments to a central core template without any amide functionality. The core scaffold selection and the structure activity relationship development were supported by molecular modeling studies and by X-ray analysis of BACE1 complexes with various ligands to expedite the optimization of the series. The direct extension from P1-aryl- and heteroaryl moieties into the S3 binding pocket allowed the enhancement of potency and selectivity over cathepsin D. Restraining the design and synthesis of compounds to a physicochemical property space consistent with central nervous system drugs led to inhibitors with improved blood brain barrier permeability. Guided by structure-based optimization, we were able to obtain highly potent compounds such as 60p with enzymatic and cellular IC50 values of 2 and 50 nM, respectively, and with >200-fold selectivity over cathepsin D. Pharmacodynamic studies in APPS1/16 transgenic mice at oral doses of 180 mu mol/kg demonstrated significant reduction of brain A beta levels.