3-Methoxycarbonylpyrazine 1-oxide | 770-00-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: 3-Methoxycarbonylpyrazine 1-oxide
• 英文别名: Methyl 2-pyrazinecarboxylate 4-oxide；methyl 4-oxidopyrazin-4-ium-2-carboxylate
• CAS: 770-00-3
• 化学式: C₆H₆N₂O₃
• mdl: MFCD00233244
• 分子量: 154.125
• InChiKey: ZTAQCRRTNOJVIU-UHFFFAOYSA-N

物化性质

• 熔点：
  172-173 °C
• 沸点：
  408.7±25.0 °C(Predicted)
• 密度：
  1.32±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -1
• 重原子数：
  11
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.166
• 拓扑面积：
  64.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  3-Methoxycarbonylpyrazine 1-oxide 在 氯化亚砜 、 乙醇 、 sodium hydroxide 作用下， 反应 10.0h， 生成 6-氯吡嗪-2-羧酸
  参考文献：
  名称：

  Structure–Activity Studies of Diazabicyclo[3.3.0]octane-Substituted Pyrazines and Pyridines as Potent α4β2 Nicotinic Acetylcholine Receptor Ligands

  摘要：

  A series of diazabicyclo[3.3.0]octane substituted pyridines and pyrazines was synthesized and characterized at the alpha 4 beta 2 neuronal nicotinic acetylcholine receptor (nAChR). The compounds were designed to mimic the profile of ABT-089, high affinity binding ligand for the alpha 4 beta 2 nAChR, with limited agonist activity. Carboxamide derivatives of 3-(diazabicyclo[3.3.0]octane)-substituted pyridines or 2-(diazabicyclo[3.3.0]octane)-substituted pyrazines were found to have the desired binding and activity profile. The structure-activity relationship of these compounds is presented.

  DOI：

  10.1021/jm201045m
• 作为产物：
  描述：

  吡嗪酰胺 在 sodium hydroxide 、 三氟化硼乙醚 、 双氧水 、 溶剂黄146 作用下， 反应 12.5h， 生成 3-Methoxycarbonylpyrazine 1-oxide
  参考文献：
  名称：

  Ambrogi; Cozzi; Sanjust, European Journal of Medicinal Chemistry, 1980, vol. 15, # 2, p. 157 - 163

  摘要：

  DOI：

文献信息

• Highly chemoselective deoxygenation of N-heterocyclic <i>N</i>-oxides under transition metal-free conditions
  作者：Se Hyun Kim、Ju Hyeon An、Jun Hee Lee

  DOI：10.1039/d1ob00260k

  日期：——

  the most useful tools for synthesizing various N-heterocyclic compounds, the highly chemoselective deoxygenation of densely functionalized N-heterocyclic N-oxides has received much attention from the synthetic chemistry community. Here, we provide a protocol for the highly chemoselective deoxygenation of various functionalized N-oxides under visible light-mediated photoredox conditions with Na2-eosin

  由于它们的位点选择性C–H官能化现在被认为是合成各种N-杂环化合物的最有用的工具之一，因此稠密官能化的N-杂环N-氧化物的高度化学选择性脱氧受到了合成化学界的广泛关注。在这里，我们提供了一种在Na 2-曙红Y作为有机光催化剂的情况下，在可见光介导的光氧化还原条件下，对各种功能化N-氧化物进行高度化学选择性脱氧的方案。机理研究表明，有机光催化剂的激发态被Hantzsch酯还原性淬灭。这种操作简单的技术可耐受各种官能团，并允许高产率，数克级的脱氧。
• INHIBITORS OF COLLAGEN PROLYL 4-HYDROXYLASE
  申请人：WISCONSIN ALUMNI RESEARCH FOUNDATION

  公开号：US20160280701A1

  公开（公告）日：2016-09-29

  Biheteroaryl dicarboxylates and esters, and salts thereof which are useful as modulators of CP4H activity and more particularly as inhibitors of CP4H. Compounds of formula: and salts thereof where: X is S, O, NH, or NR, where R is an alkyl group having 1-3 carbon atoms; R 1 and R 2 independently are —OR 7 , or —NHSO 2 R 8 , where R 7 is selected from: hydrogen, alkyl, alkenyl, alkoxyalkyl, —R′—CO—R″, —R′—CO—O—R″, —CO—R″, —R′—O—CO—R″, —R′—CO—NR″, —CO—NR″, or —R′—O—CO—NR″, and R 8 is selected from hydrogen, alkyl, aryl, arylalkyl; R 3 , R 4 and R 6 independently are hydrogen, alkyl, alkoxy, alkenyl, alkenoxy, halo alkyl, haloalkenyl, halogen, hydroxyl, hydroxyalkyl, hydroxyalkenyl, aryl, aryloxy, arylalkyl or arylalkyloxy; R 5 is hydrogen, halogen, alkyl having 1-3 carbon atoms, or alkoxy having 1-3 carbon atoms; —R′— is a divalent straight chain or branched alkylene, and —R″ is an alkyl, alkenyl, arylalkyl, or aryl group. Methods for inhibition of CP4H in vivo and in vitro.

  Biheteroaryl二羧酸酯和酯，以及它们的盐，可用作CP4H活性的调节剂，更具体地作为CP4H的抑制剂。化合物的结构式:及其盐，其中:X为S、O、NH或NR，其中R为具有1-3个碳原子的烷基基团；R1和R2独立地为—OR7，或—NHSO2R8，其中R7选自：氢、烷基、烯基、烷氧基烷基、—R′—CO—R″、—R′—CO—O—R″、—CO—R″、—R′—O—CO—R″、—R′—CO—NR″、—CO—NR″或—R′—O—CO—NR″，而R8选自氢、烷基、芳基、芳基烷基；R3、R4和R6独立地为氢、烷基、烷氧基、烯基、烯氧基、卤代烷基、卤代烯基、卤素、羟基、羟基烷基、羟基烯基、芳基、芳氧基、芳基烷基或芳基烷氧基；R5为氢、卤素、具有1-3个碳原子的烷基，或具有1-3个碳原子的烷氧基；—R′—为二价的直链或支链烷基，而—R″为烷基、烯基、芳基烷基或芳基。用于体内和体外抑制CP4H的方法。
• Studies on Pyrazines; 21.¹A Convenient Synthesis of Pyrazinecarboxylic Acid Derivatives from Chloropyrazines
  作者：Ryo Takeuchi、Katsunobu Suzuki、Nobuhiro Sato

  DOI：10.1055/s-1990-27055

  日期：——

  Palladium-catalyzed carbonylation of chloropyrazines in methanol led to pyrazinecarboxylic esters in good yields. Similarly, pyrazinecarboxamides were obtained by using dialkylamines or alkylamines as the solvent.

  在甲醇中，以钯催化的氯吡嗪羰基化反应生成了产量良好的吡嗪羧酸酯。同样，使用二烷基胺或烷基胺作为溶剂也成功获得了吡嗪羧酸胺。
• Selective Ligands for the Neuronal Nicotinic Receptors and Uses Thereof
  申请人：Bunnelle William H.

  公开号：US20090281118A1

  公开（公告）日：2009-11-12

  The present application describes selective ligands of formula (I) for neuronal nicotinic receptors (NNRs), more specifically for the α4β2 NNR subtype, compositions thereof, and methods of using the same, wherein X, R 1 , X, R 2 , R 3 , L 1 , m, n, p, and q are defined in the specification.

  本申请描述了公式（I）的选择性配体，用于神经元尼古丁受体（NNRs），更具体地用于α4β2 NNR亚型，以及其组合物和使用方法，其中X、R1、X、R2、R3、L1、m、n、p和q在规范中有定义。
• SELECTIVE SUBSTITUTED PYRIDINE LIGANDS FOR NEURONAL NICOTINIC RECEPTORS
  申请人：Bunnelle William H.

  公开号：US20120190692A1

  公开（公告）日：2012-07-26

  The present application describes selective ligands of formula (I) for neuronal nicotinic receptors (NNRs), more specifically for the α4β2 NNR subtype, compositions thereof, and methods of using the same, wherein X, R 1 , X, R 2 , R 3 , L 1 , m, n, p, and q are defined in the specification.

  本申请描述了公式（I）的选择性配体，用于神经尼古丁受体（NNRs），更具体地用于α4β2 NNR亚型，以及其组成物和使用方法，其中X，R1，X，R2，R3，L1，m，n，p和q在说明书中有定义。

表征谱图