ethyl 2-(2-(2-bromophenyl)hydrazono)-2-chloroacetate | 329712-50-7

• 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: ethyl 2-(2-(2-bromophenyl)hydrazono)-2-chloroacetate
• 英文别名: chloro[(2-bromophenyl)hydrazono]ethyl acetate；ethyl chloro[(2-bromophenyl)hydrazono]acetate；ethyl [(2-bromophenyl)hydrazono](chloro)acetate；Ethyl 2-[(2-bromophenyl)hydrazinylidene]-2-chloroacetate
• CAS: 329712-50-7
• 化学式: C₁₀H₁₀BrClN₂O₂
• 分子量: 305.559
• InChiKey: FHCICKRZGKDTLD-UHFFFAOYSA-N

物化性质

• 沸点：
  350.7±44.0 °C(Predicted)
• 密度：
  1.53±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.8
• 重原子数：
  16
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  50.7
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  ethyl 2-(2-(2-bromophenyl)hydrazono)-2-chloroacetate 在 草酰氯 、 sodium ethanolate 、 N,N-二甲基甲酰胺 、 potassium hydroxide 作用下， 以 甲醇 、 乙醇 、 二氯甲烷 为溶剂， 反应 24.0h， 生成
  参考文献：
  名称：

  PET CB1放射性配体[ 11 C] OMAR及其类似物的新高产合成途径

  摘要：

  OMAR类似物参考标准品及其相应的去甲基化前体是由取代的苯胺分4步和5步合成的，产率为27–32％和24–31％，或分3步和4步合成的，产率为21–30％和19–28％，分别。[ 11 C] OMAR及其类似物放射性配体由具有[ 11 C] CH 3 OTf的脱甲基前体通过O- [ 11 C]甲基化制备，并通过HPLC结合固相萃取（SPE）在50-65％的放射化学中进行分离产生基于[ 11 C] CO 2的化合物，并将其衰减校正为轰击结束（EOB），在EOB处的比活为370–740 GBq /μmol。

  DOI：

  10.1016/j.bmcl.2012.04.030
• 作为产物：
  描述：

  2-溴苯胺 、 2-氯乙酰乙酸乙酯 在 盐酸 、 sodium nitrite 、 sodium acetate 作用下， 以 乙醇 、 水 为溶剂， 反应 2.5h， 以91%的产率得到ethyl 2-(2-(2-bromophenyl)hydrazono)-2-chloroacetate
  参考文献：
  名称：

  Synthesis of 1-(2,4-dichlorophenyl)-4-cyano-5-(4-[11C]methoxyphenyl)-N-(piperidin-1-yl)-1H-pyrazole-3-carboxamide ([11C]JHU75528) and 1-(2-bromophenyl)-4-cyano-5-(4-[11C]methoxyphenyl)-N-(piperidin-1-yl)-1H-pyrazole-3-carboxamide ([11C]JHU75575) as potential radioligands for PET imaging of cerebral cannabinoid receptor

  摘要：

  脑大麻素受体（CB1）的两种新型配体--1-（2、合成了 1-(2,4-二氯苯基)-4-氰基-5-(4-甲氧基苯基)-N-(哌啶-1-基)-1H-吡唑-3-甲酰胺（JHU75528）和 1-(2-溴苯基)-4-氰基-5-(4-甲氧基苯基)-N-(哌啶-1-基)-1H-吡唑-3-甲酰胺（JHU75575）。与高亲和力 CB1 选择性拮抗剂利莫那班（SR141716）和唯一可用于人体 CB1 发射断层成像的配体 AM281 相比，JHU75528 和 JHU75575 都具有更高的结合亲和力和更低的亲脂性。放射性标记的[11C]JHU75528和[11C]JHU75575是通过[11C]甲基碘与非甲基前体反应制备的。[11C]JHU75528的平均放射化学收率、比放射性和放射化学纯度分别为16%、235 GBq/µmol（6360 mCi/µmol）和99%；[11C]JHU75575的平均放射化学收率、比放射性和放射化学纯度分别为8%、196 GBq/µmol（5308 mCi/µmol）和99%。这两种配体有望成为成像 CB1 受体的 PET 放射配体。Copyright © 2006 John Wiley & Sons, Ltd. All Rights Reserved.

  DOI：

  10.1002/jlcr.1125

文献信息

• Novel 4-phenoxypyridine derivatives bearing imidazole-4-carboxamide and 1,2,4-triazole-3-carboxamide moieties: Design, synthesis and biological evaluation as potent antitumor agents
  作者：Ju Liu、Fang Liu、Zhen Li、Chunyan Li、Shuang Wu、Jiwei Shen、Huan Wang、Siyuan Du、Hao Wei、Yunlei Hou、Shi Ding、Ye Chen

  DOI：10.1016/j.bioorg.2022.105629

  日期：2022.3

  Two series of novel 4-phenoxypyridine derivatives containing imidazole-4-carboxamide and 4-methyl-5-oxo-4,5-dihydro-1,2,4-triazole-3-carboxamide moieties were synthesized and evaluated for their in vitro inhibitory activities against c-Met kinase and antiproliferative activities against MKN-45, A549 and H460 cancer cell lines. The results indicated that most of the compounds showed moderate to good

  合成了两个系列的新型 4-苯氧基吡啶衍生物，含有咪唑-4-甲酰胺和 4-甲基-5-氧代-4,5-二氢-1,2,4-三唑-3-甲酰胺部分，并评估了它们的体外抑制作用对 c-Met 激酶的活性和对 MKN-45、A549 和 H460 癌细胞系的抗增殖活性。结果表明，大多数化合物显示出中等至良好的抗肿瘤活性。最有希望的化合物T14（c-Met IC 50值为 0.012 μM）对 MKN-45、A549 和 H460 细胞系显示出显着的抗增殖活性，IC 50值分别为 0.64 μM、1.92 μM 和 2.68 μM。他们初步的构效关系（SARs）研究表明，4-咪唑酰胺更优选作为连接部分，末端苯环上的吸电子基团（尤其是卤素基团）有利于提高抗肿瘤活性。
• Analogs of JHU75528, a PET ligand for imaging of cerebral cannabinoid receptors (CB1): Development of ligands with optimized lipophilicity and binding affinity
  作者：Hong Fan、Evangelia Kotsikorou、Alexander F. Hoffman、Hayden T. Ravert、Daniel Holt、Dow P. Hurst、Carl R. Lupica、Patricia H. Reggio、Robert F. Dannals、Andrew G. Horti

  DOI：10.1016/j.ejmech.2008.03.040

  日期：2009.2

  Rimonabant with high binding affinity for the cerebral cannabinoid receptor (CB1) and with optimized lipophilicity have been synthesized as potential positron emission tomography (PET) ligands. The best ligands of the series are optimal targets for the future radiolabeling with PET isotopes and in vivo evaluation as radioligands with enhanced properties for PET imaging of CB1 receptors in human subjects. Extracellular

  已经合成了对脑大麻素受体 (CB1) 具有高结合亲和力并具有优化的亲脂性的利莫那班氰基类似物，作为潜在的正电子发射断层扫描 (PET) 配体。该系列中最好的配体是未来用 PET 同位素进行放射性标记和体内评估作为具有增强的人类受试者 CB1 受体 PET 成像特性的放射性配体的最佳目标。啮齿动物脑切片的细胞外电生理记录表明，新系列的先导化合物JHU75528, 4具有功能性 CB 拮抗剂特性，与其与利莫那班的结构关系一致。分子建模分析揭示了氰基与 CB1 结合口袋的结合的重要作用。
• SUBSTITUTED N-(4-CYANO-1H-PYRAZOL-3-YL)METHYLAMINE DERIVATIVES, PREPARATION THEREOF AND THERAPEUTIC USE THEREOF
  申请人：BARTH Francis

  公开号：US20100041709A1

  公开（公告）日：2010-02-18

  The present invention relates to compounds corresponding to formula (I): Wherein X, R 1 , R 2 , R 3 and R 4 are as defined herein. The invention further relates to preparation and therapeutic use of these compounds.

  本发明涉及与以下化学式（I）对应的化合物：其中X、R1、R2、R3和R4如本文所定义。该发明还涉及这些化合物的制备和治疗用途。
• <i>N</i>-(4-Cyanotetrahydro-2<i>H</i>-pyran-4-yl) and <i>N</i>-(1-Cyanocyclohexyl) Derivatives of 1,5-Diarylpyrazole-3-carboxamides Showing High Affinity for 18 kDa Translocator Protein and/or Cannabinoid Receptors
  作者：Sean R. Donohue、Robert F. Dannals、Christer Halldin、Victor W. Pike

  DOI：10.1021/jm2000536

  日期：2011.4.28

  In order to develop improved radioligands for imaging brain CB(1) receptors with positron emission tomography (PET) based on rimonabant (5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-N-(piperidin-1-yl)-1H-pyrazole-3-carboxamide, 1), we synthesized compounds 9a-s in which the N-piperidinyl ring was replaced with a 4-(4-cyanotetrahydro-2H-pyranyl) or 1-cyanocyclohexyl ring. Such changes were expected to be almost isosteric with 1, confer greater metabolic resistance, and in the case of the 4-(4-cyanotetrahydro-2H-pyranyl) compounds, substantially reduce lipophilicity. One derivative, 1-(2-bromophenyl)-N-(1-cyanocyclohexyl)-5-(4-methoxyphenyl)-4-methylpyrazole-3-carboxamide (9n), showed high affinity (K(i) = 15.7 nM) and selectivity for binding to CB(1) receptors. The corresponding 4-(4-cyanotetrahydro-2H-pyranyl) derivative (9m) also showed quite high affinity for CB(1) receptors (K(i) = 62 nM) but was found to have even higher affinity (K(i) = 29 nM) for the structurally unrelated 18 kDa translocator protein (TSPO). Some other minor structural changes among 9a-s were also found to switch binding selectivity from CB(1) receptors to TSPO or vice versa. These unexpected findings and their implications for the development of selective ligands or PET radioligands for CB(1) receptors or TSPO are discussed in relation to current pharmacophore models of CB(1) receptor and TSPO binding sites.
• A new high-yield synthetic route to PET CB1 radioligands [11C]OMAR and its analogs
  作者：Mingzhang Gao、Min Wang、Qi-Huang Zheng

  DOI：10.1016/j.bmcl.2012.04.030

  日期：2012.6

  OMAR analogs reference standards and their corresponding desmethylated precursors were synthesized from substituted anilines either in 4 and 5 steps with 27–32% and 24–31% yield, or in 3 and 4 steps with 21–30% and 19–28% yield, respectively. [11C]OMAR and its analog radioligands were prepared from their desmethylated precursors with [11C]CH3OTf through O-[11C]methylation and isolated by HPLC combined

  OMAR类似物参考标准品及其相应的去甲基化前体是由取代的苯胺分4步和5步合成的，产率为27–32％和24–31％，或分3步和4步合成的，产率为21–30％和19–28％，分别。[ 11 C] OMAR及其类似物放射性配体由具有[ 11 C] CH 3 OTf的脱甲基前体通过O- [ 11 C]甲基化制备，并通过HPLC结合固相萃取（SPE）在50-65％的放射化学中进行分离产生基于[ 11 C] CO 2的化合物，并将其衰减校正为轰击结束（EOB），在EOB处的比活为370–740 GBq /μmol。