4-methyl-2-oxo-2H-chromen-7-yl (ethyl) methylphosphonate | 226921-81-9

• 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: 4-methyl-2-oxo-2H-chromen-7-yl (ethyl) methylphosphonate
• 英文别名: 7-[Ethoxy(methyl)phosphoryl]oxy-4-methylchromen-2-one
• CAS: 226921-81-9
• 化学式: C₁₃H₁₅O₅P
• 分子量: 282.233
• InChiKey: IRTYKYONNHLPIW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  19
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.31
• 拓扑面积：
  61.8
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  羟甲香豆素 、 ethyl methylphosphonochloridate 在 sodium hydride 作用下， 以 四氢呋喃 为溶剂， 反应 12.0h， 以21%的产率得到4-methyl-2-oxo-2H-chromen-7-yl (ethyl) methylphosphonate
  参考文献：
  名称：

  Synthesis and anticholinesterase activity of some new fluorogenic analogues of organophosphorus nerve agents

  摘要：

  Eighteen new fluorogenic analogues of organophosphorus nerve agents were synthesised and characterised. They included analogues of tabun, sarin, cyclosarin, soman, VX, and Russian VX, with the 7-oxy-4-methylcoumarin or 7-oxy-4-(trifluoromethyl)coumarin leaving group. These analogues inhibited acetylcholinesterase (AChE) effectively in vitro and therefore have potential as tools for the identification of novel organophosphatases in biological systems. Analogues of VX and Russian VX with the 7-amino-4-methylcoumarin group, although poor AChE inhibitors, may have utility for screening enzyme libraries for phosphoramidases capable of cleaving P-N bonds. (c) 2006 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jfluchem.2006.07.017

文献信息

• Demonstration of In Vitro Resurrection of Aged Acetylcholinesterase after Exposure to Organophosphorus Chemical Nerve Agents
  作者：Qinggeng Zhuang、Andrew J. Franjesevic、Thomas S. Corrigan、William H. Coldren、Rachel Dicken、Sydney Sillart、Ashley DeYong、Nathan Yoshino、Justin Smith、Stephanie Fabry、Keegan Fitzpatrick、Travis G. Blanton、Jojo Joseph、Ryan J. Yoder、Craig A. McElroy、Özlem Doğan Ekici、Christopher S. Callam、Christopher M. Hadad

  DOI：10.1021/acs.jmedchem.7b01620

  日期：2018.8.23

  reactivators of OP-inhibited AChE are no longer effective. Realkylation of aged AChE may provide a route to reversing aging. We designed and synthesized a library of quinone methide precursors (QMPs) as proposed realkylators of aged AChE. Our lead compound (C8) from an in vitro screen successfully resurrected 32.7 and 20.4% of the activity of methylphosphonate-aged and isopropyl phosphate-aged electric-eel AChE

  在有机磷（OP）神经毒剂抑制乙酰胆碱酯酶（AChE）之后，磷酸化丝氨酸的脱烷基反应会发生，称为老化。老化后，OP抑制的AChE的已知激活剂将不再有效。老化的AChE的重烷基化可能提供逆转老化的途径。我们设计和合成了醌甲基化物前体（QMP）库，作为老化的AChE的拟烷基化剂。4天后，我们通过体外筛选得到的先导化合物（C8）分别成功恢复了甲基膦酸酯老化和磷酸异丙酯老化电鳗AChE活性的32.7和20.4％。C8显示复活（从老化状态恢复到原始状态）和重新激活（从抑制状态恢复到原始状态）的属性。C8可以使甲基膦酸酯老化的AChE的复活显着依赖于pH，仅在1天后在4 mM和pH 9时恢复了21％的活性。C8对磷酸异丙酯老化的人AChE也有效。
• Heteroaromatic electrophiles and methods of using thereof
  申请人：OHIO STATE INNOVATION FOUNDATION

  公开号：US11492340B2

  公开（公告）日：2022-11-08

  Disclosed herein are compounds, compositions, and methods for reactivating or realkylating aged acetylcholinesterase inhibited by or conjugated to the organophosphorus compound. The organophosphorus compound can be a nerve agent. The acetylcholinesterase can be in the central nerve system (CNS) and/or the peripheral nervous system (PNS) of a subject. Accordingly, methods for ameliorating, diminishing, reversing, treating or preventing the toxic effects of an organophosphorus compound in a subject are provided herein. Methods for prophylactic or therapeutic treatment of exposure to an organophosphorus nerve agent are also provided.

  本文公开了用于重新激活或重新烷基化被有机磷化合物抑制或与有机磷化合物共轭的老化乙酰胆碱酯酶的化合物、组合物和方法。有机磷化合物可以是神经毒剂。乙酰胆碱酯酶可以存在于受试者的中枢神经系统（CNS）和/或周围神经系统（PNS）中。因此，本文提供了改善、减轻、逆转、治疗或预防有机磷化合物对受试者的毒性作用的方法。还提供了对接触有机磷神经毒剂进行预防或治疗的方法。
• HETEROAROMATIC ELECTROPHILES AND METHODS OF USING THEREOF
  申请人：OHIO STATE INNOVATION FOUNDATION

  公开号：US20220204472A1

  公开（公告）日：2022-06-30

  Disclosed herein are compounds, compositions, and methods for reactivating or realkylating aged acetylcholinesterase inhibited by or conjugated to the organophosphorus compound. The organophosphorus compound can be a nerve agent. The acetylcholinesterase can be in the central nerve system (CNS) and/or the peripheral nervous system (PNS) of a subject. Accordingly, methods for ameliorating, diminishing, reversing, treating or preventing the toxic effects of an organophosphorus compound in a subject are provided herein. Methods for prophylactic or therapeutic treatment of exposure to an organophosphorus nerve agent are also provided.
• Synthesis and anticholinesterase activity of some new fluorogenic analogues of organophosphorus nerve agents
  作者：Christopher M. Timperley、Krystal E. Casey、Stuart Notman、David J. Sellers、Nancy E. Williams、Nichola H. Williams、Gareth R. Williams

  DOI：10.1016/j.jfluchem.2006.07.017

  日期：2006.12

  Eighteen new fluorogenic analogues of organophosphorus nerve agents were synthesised and characterised. They included analogues of tabun, sarin, cyclosarin, soman, VX, and Russian VX, with the 7-oxy-4-methylcoumarin or 7-oxy-4-(trifluoromethyl)coumarin leaving group. These analogues inhibited acetylcholinesterase (AChE) effectively in vitro and therefore have potential as tools for the identification of novel organophosphatases in biological systems. Analogues of VX and Russian VX with the 7-amino-4-methylcoumarin group, although poor AChE inhibitors, may have utility for screening enzyme libraries for phosphoramidases capable of cleaving P-N bonds. (c) 2006 Elsevier B.V. All rights reserved.