2-methyl-5-vinylpyridazin-3(2H)-one | 825634-01-3

• 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: 2-methyl-5-vinylpyridazin-3(2H)-one
• 英文别名: 5-ethenyl-2-methylpyridazin-3-one
• CAS: 825634-01-3
• 化学式: C₇H₈N₂O
• 分子量: 136.153
• InChiKey: JBZMUIBSFQYAEL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.3
• 重原子数：
  10
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  32.7
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-methyl-5-vinylpyridazin-3(2H)-one 在 氧气 、 臭氧 、 二甲基硫 作用下， 以 二氯甲烷 为溶剂， 反应 0.58h， 以71%的产率得到1-甲基-6-氧代-1,6-二氢哒嗪-4-甲醛
  参考文献：
  名称：

  Design, Synthesis, and Structure–Activity Relationships of a Novel Series of 5-Alkylidenepyridazin-3(2H)-ones with a Non-cAMP-Based Antiplatelet Activity

  摘要：

  5-Alkylidenepyridazin-3-ones with four points of diversity (R-2, R-6, X, Y) have been synthesized and evaluated as platelet aggregation inhibitors. Several derivatives eliciting antiplatelet activity in the low micromolar range (e.g., 14e, 14k, 14p, 14v, IC50 congruent to 1 mu M) were identified. Structure-activity relationships studies on these compounds revealed the key molecular determinants of this new family of antiplatelet agents: (a) two ester groups in the alkoxy moieties; (b) lipophilic substituents at the N2 position of the pyridazin-3-one. The preliminary results of a pharmacological study aimed at determining the mechanism of action of a set of representative compounds revealed that, unlike other pyridazinones, the documented antiplatelet effect is not a consequence of a PDE-III inhibitory activity.

  DOI：

  10.1021/jm061401d
• 作为产物：
  描述：

  4,5-二氯-2-甲基哒嗪-3-酮 在 bis-triphenylphosphine-palladium(II) chloride 氢碘酸 作用下， 以 甲苯 为溶剂， 反应 24.0h， 生成 2-methyl-5-vinylpyridazin-3(2H)-one
  参考文献：
  名称：

  哒嗪衍生物。第39部分：5-碘哒嗪-3（2 H）-在钯催化的反应中的反应性

  摘要：

  在寻找新的抗血小板药中，据报道利用钯催化的交叉偶联反应制备2，5-二取代的哒嗪-3（2 H）-1的方便，有效的方法。在5-碘吡啶并嗪-3（2 H）-ones（3）与1-苯基-2-丙炔-1-醇的Sonogashira炔基化过程中，观察到了偶联后的碱基促进的异构化。在3的Heck烯基化过程中，副产物的量不同的邻苯二氮酮被分离出来。羟甲基片段作为5-取代哒嗪-3（2 H）-ones合成过程中的保护基的有效性已得到验证。

  DOI：

  10.1016/j.tet.2004.10.014

文献信息

• EP2 ANTAGONIST COMPOUNDS
  申请人：[en]RESERVOIR NEUROSCIENCE, INC.

  公开号：WO2024145259A2

  公开（公告）日：2024-07-04

  Disclosed herein are compounds that are EP2 antagonists, methods of making such compounds, pharmaceutical compositions and medicaments comprising such compounds, and methods of using such compounds in the treatment of diseases or conditions associated with EP2 activity.
• Design, Synthesis, and Structure–Activity Relationships of a Novel Series of 5-Alkylidenepyridazin-3(2<i>H</i>)-ones with a Non-cAMP-Based Antiplatelet Activity
  作者：Alberto Coelho、Enrique Raviña、Nuria Fraiz、Matilde Yáñez、Reyes Laguna、Ernesto Cano、Eddy Sotelo

  DOI：10.1021/jm061401d

  日期：2007.12.27

  5-Alkylidenepyridazin-3-ones with four points of diversity (R-2, R-6, X, Y) have been synthesized and evaluated as platelet aggregation inhibitors. Several derivatives eliciting antiplatelet activity in the low micromolar range (e.g., 14e, 14k, 14p, 14v, IC50 congruent to 1 mu M) were identified. Structure-activity relationships studies on these compounds revealed the key molecular determinants of this new family of antiplatelet agents: (a) two ester groups in the alkoxy moieties; (b) lipophilic substituents at the N2 position of the pyridazin-3-one. The preliminary results of a pharmacological study aimed at determining the mechanism of action of a set of representative compounds revealed that, unlike other pyridazinones, the documented antiplatelet effect is not a consequence of a PDE-III inhibitory activity.
• Pyridazine derivatives. Part 39: Reactivity of 5-iodopyridazin-3(2H)-ones in palladium-catalysed reactions
  作者：Alberto Coelho、Eddy Sotelo、Héctor Novoa、Oswald M. Peeters、Norbert Blaton、Enrique Raviña

  DOI：10.1016/j.tet.2004.10.014

  日期：2004.12

  antiplatelet agents, convenient and efficient methods for the preparation of 2,5-disubstituted pyridazin-3(2H)-ones are reported that utilise palladium-catalysed cross-coupling reactions. A post-coupling base-promoted isomerisation has been observed during Sonogashira alkynylation of 5-iodopyridazin-3(2H)-ones (3) with 1-phenyl-2-propyn-1-ol. Variable amounts of phthalazinones were isolated as by-products during

  在寻找新的抗血小板药中，据报道利用钯催化的交叉偶联反应制备2，5-二取代的哒嗪-3（2 H）-1的方便，有效的方法。在5-碘吡啶并嗪-3（2 H）-ones（3）与1-苯基-2-丙炔-1-醇的Sonogashira炔基化过程中，观察到了偶联后的碱基促进的异构化。在3的Heck烯基化过程中，副产物的量不同的邻苯二氮酮被分离出来。羟甲基片段作为5-取代哒嗪-3（2 H）-ones合成过程中的保护基的有效性已得到验证。