ethyl 6-methoxy-3-methylquinoxaline-2-carboxylate | 1214254-75-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氮杂萘
• 英文名称: ethyl 6-methoxy-3-methylquinoxaline-2-carboxylate
• CAS: 1214254-75-7
• 化学式: C₁₃H₁₄N₂O₃
• 分子量: 246.266
• InChiKey: LJLAGSMXRMISCK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  18
• 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：
  61.3
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  乙酰乙酸乙酯 在 溶剂黄146 、 sodium nitrite 作用下， 以 水 、 苯 为溶剂， 反应 4.0h， 生成 ethyl 6-methoxy-3-methylquinoxaline-2-carboxylate
  参考文献：
  名称：

  通过缩合和无金属N-芳基化反应形成串联C–N键：合成各种功能化喹喔啉的方案

  摘要：

  通过缩合和无金属的N-芳基化反应，由芳基胺和易于获得的β-酮肟以高收率合成了多种功能化的喹喔啉。该反应与各种官能团相容，例如卤化物，氰基和酯。根据实验结果提出了一种机理。这些喹喔啉可以以克为单位轻松获得，并转化为各种有用的支架。分两步以83％的产率制备化合物LASSBio-1022。

  DOI：

  10.1021/acs.joc.7b00011

文献信息

• Iron-Catalyzed Annulation of 1,2-Diamines and Diazodicarbonyls for Diverse and Polyfunctionalized Quinoxalines, Pyrazines, and Benzoquinoxalines in Water
  作者：Rameshwar Prasad Pandit、Sung Hong Kim、Yong Rok Lee

  DOI：10.1002/adsc.201600503

  日期：2016.11.17

  construction of polyfunctionalized quinoxalines has been developed. The key strategy includes the one‐pot domino N−H insertion, cyclization, and oxidation reactions. This protocol offers a safe and mild synthetic approach to access a variety of quinoxaline derivatives in high yields. This methodology also allows the formation of biologically interesting pyrazines and benzoquinoxalines.

  已经开发了一种新颖，简便的铁催化水中邻苯二胺和重氮羰基串联的方法，用于构造多官能化喹喔啉。关键策略包括一锅多米诺骨牌NH插入，环化和氧化反应。该方案提供了一种安全，温和的合成方法，可以高产率获得各种喹喔啉衍生物。这种方法还可以形成生物学上有趣的吡嗪和苯并喹喔啉。
• TRI-SUBSTITUTED PYRIMIDINE COMPOUNDS AND THEIR USE AS PDE10 INHIBITORS
  申请人：Kawanishi Eiji

  公开号：US20110160206A1

  公开（公告）日：2011-06-30

  The present invention provides a tri-substituted pyrimidine compound having an excellent PDE10 inhibitory activity. The present invention relates to a tri-substituted pyrimidine compound represented by the following formula [I 0 ] or a pharmaceutically acceptable salt thereof, a method for preparing the same, and use of said compound for PDE10 inhibitor, and a pharmaceutical composition comprising said compounds as an active ingredient: wherein: either one of X 1 and X 2 is N, and the other of X 1 and X 2 is CH; A is *-CH═CH—, *-C(Alk)=CH—, *-CH 2 —CH 2 — or *-O—CH 2 — (* is a bond with R 1 ); Alk is a lower alkyl group; Ring B is an optionally substituted nitrogen-containing aliphatic heterocyclic group; R 1 is an optionally substituted quinoxalinyl or an optionally substituted quinolyl; Y 0 is mono- or di-substituted amino group, or a pharmaceutically acceptable salt thereof.

  本发明提供了一种具有优异的PDE10抑制活性的三取代嘧啶化合物。本发明涉及一种由以下式[I0]表示的三取代嘧啶化合物或其药学上可接受的盐，以及制备该化合物的方法，以及将所述化合物用作PDE10抑制剂的用途，以及包含所述化合物作为活性成分的药物组合物：其中：X1和X2中的任一者为N，另一者为CH；A为*-CH═CH—，*-C(Alk)=CH—，*-CH2—CH2—或*-O—CH2—（*是与R1形成键）；Alk为较低的烷基基团；环B为可选择地取代的含氮脂肪杂环基团；R1为可选择地取代的喹唑啉基或可选择地取代的喝啉基；Y0为单取代或双取代的氨基团，或其药学上可接受的盐。
• [EN] TRI-SUBSTITUTED PYRIMIDINE COMPOUNDS AND THEIR USE AS PDE10 INHIBITORS<br/>[FR] PYRIMIDINES TRI-SUBSTITUÉES ET LEUR UTILISATION COMME INHIBITEURS DE PDE10
  申请人：MITSUBISHI TANABE PHARMA CORP

  公开号：WO2010027097A1

  公开（公告）日：2010-03-11

  The present invention provides a tri-substituted pyrimidine compound having an excellent PDE10 inhibitory activity. The present invention relates to a tri-substituted pyrimidine compound represented by the following formula [I0] or a pharmaceutically acceptable salt thereof, a method for preparing the same, and use of said compound for PDE10 inhibitor, and a pharmaceutical composition comprising said compounds as an active ingredient: wherein: either one of X1 and X2 is N, and the other of X1 and X2 is CH; A is *-CH=CH-, *-C(Alk)=CH-, *-CH2-CH2- or *-O-CH2- (* is a bond with R1); Alk is a lower alkyl group; Ring B is an optionally substituted nitrogen-containing aliphatic heterocyclic group; R1 is an optionally substituted quinoxalinyl or an optionally substituted quinolyl; Y0 is mono- or di- substituted amino group, or a pharmaceutically acceptable salt thereof.
• Tandem C–N Bond Formation through Condensation and Metal-Free <i>N</i>-Arylation: Protocol for Synthesizing Diverse Functionalized Quinoxalines
  作者：Yan-Xiao Jiao、Ling-Ling Wu、Hai-Miao Zhu、Jiang-Ke Qin、Cheng-Xue Pan、Dong-Liang Mo、Gui-Fa Su

  DOI：10.1021/acs.joc.7b00011

  日期：2017.4.21

  Diverse functionalized quinoxalines were synthesized in good yields from arylamines and readily available β-keto oximes through condensation and metal-free N-arylation. The reaction was compatible with various functional groups, such as halides, cyano, and esters. A mechanism was proposed based on the experimental results. These quinoxalines were easily obtained on a gram scale and converted to various

  通过缩合和无金属的N-芳基化反应，由芳基胺和易于获得的β-酮肟以高收率合成了多种功能化的喹喔啉。该反应与各种官能团相容，例如卤化物，氰基和酯。根据实验结果提出了一种机理。这些喹喔啉可以以克为单位轻松获得，并转化为各种有用的支架。分两步以83％的产率制备化合物LASSBio-1022。