6,8-dibromocoumarincarbonyl chloride | 1173095-69-6

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 香豆素及其衍生物
• 英文名称: 6,8-dibromocoumarincarbonyl chloride
• 英文别名: 6,8-Dibromo-2-oxochromene-3-carbonyl chloride
• CAS: 1173095-69-6
• 化学式: C₁₀H₃Br₂ClO₃
• 分子量: 366.393
• InChiKey: RGKXLQBVDGAGLY-UHFFFAOYSA-N

物化性质

• 沸点：
  465.3±45.0 °C(Predicted)
• 密度：
  2.110±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  16.0
• 可旋转键数：
  1.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  47.28
• 氢给体数：
  0.0
• 氢受体数：
  3.0

反应信息

• 作为反应物：
  描述：

  仲丁胺 、 6,8-dibromocoumarincarbonyl chloride 在 4-二甲氨基吡啶 作用下， 以 氯仿 为溶剂， 以86%的产率得到6,8-dibromo-N-sec-butyl-2-oxo-2H-chromene-3-carboxamide
  参考文献：
  名称：

  New coumarin derivatives: Design, synthesis and use as inhibitors of hMAO

  摘要：

  A series new 2H-chromene-3-carboxamides (4a-4i) and S-2H-chromene-3-carbothioates (5j-5t) were synthesized and evaluated as monoamine oxidase A and B inhibitors. Among them, compound 5k (IC50=0.21μM, IC50 iproniazid=7.65μM) showed the most activity and higher MAO-B selectivity (189.2-fold vs 1-fold) with respect to the MAO-A isoform. The need to clarify at a 3D level some important molecular aspects of discussed SAR, we undertaked a number of docking simulations to better assess. The steric effect was analyzed interms of both posing and scoring by investigating the nature of the binding interactions. The docking results of active compound 5k with hMAO-B complex indicated that conserved residue ILE 199 was important for ligand binding via Sigma-Pi interaction.

  DOI：

  10.1016/j.bmc.2014.05.002
• 作为产物：
  描述：

  6,8-二溴-2-氧代-2H-色烯-3-羧酸乙酯 在 盐酸 、 氯化亚砜 、 sodium hydroxide 作用下， 反应 4.0h， 生成 6,8-dibromocoumarincarbonyl chloride
  参考文献：
  名称：

  New 2H-chromene-3-carboxamide derivatives: Design, synthesis and use as inhibitors of hMAO

  摘要：

  A series new 2H-chromene-3-carboxamide derivatives 4a-4t were synthesized and evaluated as monoamine oxidase A and B (MAO-A and MAO-B) inhibitors. Among them, compound 4d (IC50 = 0.93 μM, IC(50 iproniazid) = 7.80 μM) showed the most activity and higher MAO-B selectivity (64.5-fold vs. 1-fold) with respect to the MAO-A isoform. The active compound 4d was also docked into the hMAO-B complex structure active site to determine the probable binding model. The results indicated that conserved residue CYSA 172 was important for ligand binding via hydrogen bond interaction, Pi-Pi interaction was found between the benzene-ring of compound 4d and residue ILEA 199.

  DOI：

  10.1016/j.ejmech.2014.04.060

文献信息

• Sulfamic acid catalyzed one-pot synthesis of 2,5-diaryl-1,3,4-oxadiazoles under microwave irradiation and conventional heating
  作者：J. Venu Madhav、Y. Thirupathi Reddy、P. Narsimha Reddy、Peter. A. Crooks、V. Naveen Kumar、B. Rajitha

  DOI：10.1002/jhet.4

  日期：2009.3

  Sulfamic acid has been found to be an efficient catalyst for the one-pot synthesis of novel 2,5-diaryl-1,3,4-oxadiazoles by condensation of different coumarinoyl hydrazides with various coumarinoyl or quinolinoyl chlorides under microwave irradiation and conventional heating. Some of the advantages of this method are low reaction times, operational simplicity, and high yields. J. Heterocyclic Chem

  已发现氨基磺酸是在微波辐射和常规加热下通过将不同的香豆酰肼与各种香豆酰或喹啉酰氯缩合而一锅合成新型2,5-二芳基-1,3,4-恶二唑的有效催化剂。该方法的一些优点是反应时间短，操作简便和产率高。J.杂环化​​学。（2009）
• Synthesis, selective anti-Helicobacter pylori activity, and cytotoxicity of novel N-substituted-2-oxo-2H-1-benzopyran-3-carboxamides
  作者：Franco Chimenti、Bruna Bizzarri、Adriana Bolasco、Daniela Secci、Paola Chimenti、Arianna Granese、Simone Carradori、Daniela Rivanera、Alessandra Zicari、M. Maddalena Scaltrito、Francesca Sisto

  DOI：10.1016/j.bmcl.2010.06.048

  日期：2010.8

  N-substituted-3-carboxamido-coumarin derivatives were prepared and evaluated for selective antibacterial activity against 20 isolates of Helicobacter pylori clinical strains, including five metronidazole resistant ones. Some of them possessed the best activity against H. pylori metronidazole resistant strains with MIC values lower than the drug reference (metronidazole). Furthermore, anti-inflammatory activity through the inhibition of the IL-8 production was investigated. (c) 2010 Elsevier Ltd. All rights reserved.
• 3-[Benzimidazo- and 3-[benzothiadiazoleimidazo-(1,2-c)quinazolin-5-yl]-2H-chromene-2-ones as potent antimicrobial agents
  作者：B. Suresh Kuarm、Y. Thirupathi Reddy、J. Venu Madhav、Peter A. Crooks、B. Rajitha

  DOI：10.1016/j.bmcl.2010.10.082

  日期：2011.1

  A series of 3-[benzimidazo(1,2-c) quinazolin-5-yl]-2H-chromene-2-one (6a-6f) and 3-[benzothiadiazoleimidazo( 1,2-c) quinazolin-5-yl]-2H-chromene-2-one derivatives (7a-7f) that incorporate a variety of substituents at the 6-and/or 8-positions of the coumarin moieties have been synthesized utilizing cellulose sulfuric acid as an efficient catalyst under both conventional heating and microwave irradiation procedures. These analogs were evaluated for their antimicrobial activity against Bacillus subtilis, Staphylococcus aureus, Streptococcus pyogenes (Gram-positive bacteria), Escherichia Coli, Klebsiella pneumonia, Salmonella typhimurium (Gram-negative bacteria), and Aspergillus niger, Candida albicans, and Aspergillus flavus (Fungi). Two analogs, 6c (a 6,8-dichloro analog, MIC[SA] = 2.5 mu g/mL; MIC[ST] = 2.5 mu g/mL) and 7d (a 6,8-dibromo analog, MIC[ST] = 2.5 mu g/mL) were identified as potent antibacterial agents, and two analogs, 6b (a 6-bromo analog, MIC[AF] = 10 mu g/mL) and 6d (a 6,8-dibromo analog, MIC[AF] = 15 mu g/mL; MIC[CA] = 15 mu g/mL), were identified as potent antifungal agents. Based on the MIC data, analogs 6b, 6c, 6d, and 7d were identified as the most potent antimicrobial agents in the series. (C) 2010 Elsevier Ltd. All rights reserved.