3-(benzyloxy)-6H-benzo[c]chromen-6-one

• 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: 3-(benzyloxy)-6H-benzo[c]chromen-6-one
• 英文别名: 3-phenylmethoxybenzo[c]chromen-6-one
• 化学式: C₂₀H₁₄O₃
• 分子量: 302.329
• InChiKey: VABIAROAZJNLBQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.5
• 重原子数：
  23
• 可旋转键数：
  3
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.05
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  3-羟基-7,8,9,10-四氢苯并[c]苯并吡喃-6-酮 在 potassium carbonate 、 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下， 以 1,4-二氧六环 、 乙醇 为溶剂， 反应 2.5h， 生成 3-(benzyloxy)-6H-benzo[c]chromen-6-one
  参考文献：
  名称：

  Inhibition of Monoamine Oxidases by Functionalized Coumarin Derivatives:  Biological Activities, QSARs, and 3D-QSARs

  摘要：

  A large series of coumarin derivatives (71 compounds) were tested for their monoamine oxidase A and B (MAO-A and MAO-B) inhibitory activity. Most of the compounds acted preferentially on MAO-B with IC50 values in the micromolar to low-nanomolar range; high inhibitory activities toward MAO-A were also measured for sulfonic acid esters. The most active compound was 7-[(3,4-difluorobenzyl)oxy]-3,4-dimethylcoumarin, with an IC50 value toward MAO-B of 1.14 nM. A QSAR study of 7-X-benzyloxy meta-substituted 3,4-dimethylcoumarin derivatives acting on MAO-B yielded good statistical results (q(2) = 0.72, r(2) = 0.86), revealing the importance of lipophilic interactions in modulating the inhibition and excluding any dependence on electronic properties. CoMFA was performed on two data sets of MAO-A and MAO-B inhibitors. The GOLPE procedure, with variable selection criteria, was applied to improve the predictivity of the models and to facilitate the graphical interpretation of results.

  DOI：

  10.1021/jm001028o

文献信息

• General and Practical Carboxyl-Group-Directed Remote CH Oxygenation Reactions of Arenes
  作者：Yang Wang、Anton V. Gulevich、Vladimir Gevorgyan

  DOI：10.1002/chem.201303511

  日期：2013.11.18

  Two methods for remote aromatic CH oxygenation reactions, have been developed. Method 1, the Cu‐catalyzed oxygenation reaction, is highly efficient for cyclization of electron‐neutral and electron‐rich biaryl carboxylic acids into 3,4‐benzocoumarins. Method 2, the K2S2O8‐mediated oxygenation reaction, is more general and practical for cyclization of substrates with electron‐donating and ‐withdrawing

  已经开发了两种用于远程芳族 C  H 氧化反应的方法。方法 1，即 Cu 催化的氧化反应，对于将电子中性和富电子的联芳基羧酸环化为 3,4-苯香豆素非常有效。方法 2，K 2 S 2 O 8介导的氧化反应，对于具有给电子和吸电子基团的底物的环化更为通用和实用（见方案）。
• Mild ArI-Catalyzed C(sp²)H or C(sp³)H Functionalization/CO Formation: An Intriguing Catalyst-Controlled Selectivity Switch
  作者：Xueqiang Wang、Joan Gallardo-Donaire、Ruben Martin

  DOI：10.1002/anie.201407011

  日期：2014.10.6

  A tandem C(sp2)H and C(sp3)H functionalization/CO bond formation catalyzed by iodine(III) reagents generated in situ has been developed. The method shows wide scope under mild conditions and exhibits an unprecedented selectivity profile that can be switched depending on the catalyst employed.

  C（SP A串联2） H和C（SP 3） ħ官能/ C 由碘催化O键形成原位产生（III）的试剂已经被开发出来。该方法在温和条件下显示范围广，并且显示出前所未有的选择性曲线，可以根据所用催化剂进行切换。
• Design, Synthesis, and Biological Evaluation of Novel 6H-Benzo[c]chromen-6-one Derivatives as Potential Phosphodiesterase II Inhibitors
  作者：Long Tang、Jianchun Jiang、Guoqiang Song、Yajing Wang、Ziheng Zhuang、Ying Tan、Yan Xia、Xianfeng Huang、Xiaoqing Feng

  DOI：10.3390/ijms22115680

  日期：——

  enhancer in the treatment of neurodegenerative diseases. As part of this research, a series of alkoxylated 6H-benzo[c]chromen-6-one derivatives were designed and synthesized. Furthermore, their biological activities were evaluated as potential PDE2 inhibitors, and the alkoxylated 6H-benzo[c]chromen-6-one derivative 1f was found to have the optimal inhibitory potential (IC50: 3.67 ± 0.47 μM). It also exhibited

  尿石素（羟基化的6 H-苯并[ c ] chromen-6-ones）是鞣花酸（EA）的主要生物利用代谢物，被证明是治疗神经退行性疾病的认知增强剂。作为本研究的一部分，设计并合成了一系列烷氧基化的6 H-苯并[ c ] chromen-6-one衍生物。此外，评估了它们的生物活性作为潜在的PDE2抑制剂，发现烷氧基化的6 H-苯并[ c ] chromen-6-one衍生物1f具有最佳的抑制潜力（IC 50：3.67±0.47μM）。与BAY 60-7550体外细胞水平研究相比，它还表现出可比的活性。
• Bu3SnH mediated oxidative radical cyclisations: synthesis of 6H-benzo[c]chromen-6-ones †
  作者：W. Russell Bowman、Emma Mann、Jonathan Parr

  DOI：10.1039/b002539i

  日期：——

  Attempts to synthesise 6H-benzo[c]chromen-6-ones by Bu3SnH mediated cyclisation of o-(benzoyl)aryl radicals failed because of the preferred trans conformation of the ester. This problem was overcome by using cyclisation of o-(benzyloxy)aryl and o-[(aryloxy)methyl]aryl radicals to yield 6H-benzo[c]chromenes followed by oxidation to the 6H-benzo[c]chromen-6-ones. 3-Methoxy-6H-benzo[c]chromen-6-one 1, one of the main biologically active constituents of shilajit, a herbal medicine used in countries surrounding the Himalayan mountains, was synthesised using Bu3SnH mediated cyclisation of 1-benzyloxy-2,4-dibromo-5-methoxybenzene 31 to yield 3-methoxy-6H-benzo[c]chromene 25 followed by PCC oxidation of the 6-position. In order to avoid the problems of rearrangement, the aryl radical cyclisation must be designed such that whichever way the spirodienyl intermediate rearranges, the same product is obtained. For instance, the Bu3SnH mediated cyclisation of 1-iodo- and 1-bromo-2-(3-methoxyphenyloxymethyl)benzenes 22 and 23 respectively gave both the isomers, 1-methoxy-6H-benzo[c]chromenes 24 and 3-methoxy-6H-benzo[c]chromenes 25via rearrangement of the intermediate spirodienyl radical. The synthesised 6H-benzo[c]chromenes were oxidised in high yield to the corresponding 6H-benzo[c]chromen-6-ones. The mechanism of the ‘oxidative’ Bu3SnH mediated cyclisation is discussed.

  通过 Bu3SnH 介导的邻（苯甲酰基）芳基环化合成 6H-苯并[c]色烯-6-酮的尝试失败了，因为酯的反式构象是首选的。通过使用邻（苄氧基）芳基和邻[（芳氧基）甲基]芳基环化生成 6H-苯并[c]色烯，然后氧化成 6H-苯并[c]色烯-6-酮，这一问题得以解决。3- 甲氧基-6H-苯并[c]色烯-6-酮 1 是喜马拉雅山脉周边国家使用的一种草药--希拉吉特的主要生物活性成分之一，该化合物是利用 Bu3SnH 介导 1-苄氧基-2,4-二溴-5-甲氧基苯 31 环化生成 3-甲氧基-6H-苯并[c]色烯 25，然后在 6 位进行 PCC 氧化合成的。为了避免重排问题，芳基自由基环化必须设计成无论螺二烯基中间体如何重排，都能得到相同的产物。例如，Bu3SnH 介导的 1-碘和 1-溴-2-(3-甲氧基苯氧基甲基)苯 22 和 23 的环化，通过中间螺二烯基的重排，分别得到了异构体 1-甲氧基-6H-苯并[c]色烯 24 和 3-甲氧基-6H-苯并[c]色烯 25。合成的 6H-苯并[c]色烯被高产率氧化成相应的 6H-苯并[c]色烯-6-酮。本文讨论了 Bu3SnH 介导的 "氧化 "环化机制。
• Inhibition of Monoamine Oxidases by Functionalized Coumarin Derivatives:  Biological Activities, QSARs, and 3D-QSARs
  作者：Carmela Gnerre、Marco Catto、Francesco Leonetti、Peter Weber、Pierre-Alain Carrupt、Cosimo Altomare、Angelo Carotti、Bernard Testa

  DOI：10.1021/jm001028o

  日期：2000.12.1

  A large series of coumarin derivatives (71 compounds) were tested for their monoamine oxidase A and B (MAO-A and MAO-B) inhibitory activity. Most of the compounds acted preferentially on MAO-B with IC50 values in the micromolar to low-nanomolar range; high inhibitory activities toward MAO-A were also measured for sulfonic acid esters. The most active compound was 7-[(3,4-difluorobenzyl)oxy]-3,4-dimethylcoumarin, with an IC50 value toward MAO-B of 1.14 nM. A QSAR study of 7-X-benzyloxy meta-substituted 3,4-dimethylcoumarin derivatives acting on MAO-B yielded good statistical results (q(2) = 0.72, r(2) = 0.86), revealing the importance of lipophilic interactions in modulating the inhibition and excluding any dependence on electronic properties. CoMFA was performed on two data sets of MAO-A and MAO-B inhibitors. The GOLPE procedure, with variable selection criteria, was applied to improve the predictivity of the models and to facilitate the graphical interpretation of results.