3-Methyl-4-(3-nitro-phenyl)-6H-isoxazolo[3,4-d]pyridazin-7-one | 189306-89-6

• 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-Methyl-4-(3-nitro-phenyl)-6H-isoxazolo[3,4-d]pyridazin-7-one
• 英文别名: 3-Methyl-4-(3-nitrophenyl)isoxazolo[3,4-d]pyridazin-7(6H)-one；3-methyl-4-(3-nitrophenyl)-6H-[1,2]oxazolo[3,4-d]pyridazin-7-one
• CAS: 189306-89-6
• 化学式: C₁₂H₈N₄O₄
• 分子量: 272.22
• InChiKey: WIMWHCHGASQBGL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  20
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  113
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  3-Methyl-4-(3-nitro-phenyl)-6H-isoxazolo[3,4-d]pyridazin-7-one 在 ammonium cerium(IV) nitrate 、 硝酸 、 potassium carbonate 、 溶剂黄146 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 1.0h， 生成 5-Acetyl-2-ethyl-4-nitro-6-(3-nitro-phenyl)-2H-pyridazin-3-one
  参考文献：
  名称：

  Novel Heterocyclic-Fused Pyridazinones as Potent and Selective Phosphodiesterase IV Inhibitors

  摘要：

  A series of 6-aryl-4,5-heterocyclic-fused pyridazinones were designed and synthesized as selective phosphodiesterase (PDE) TV inhibitors. Biological evaluation of these compounds demonstrated a good selectivity profile toward the PDE TV family and greatly attenuated affinity for the Rolipram high-affinity binding site that seems to be responsible for undesiderable side effects. Structure-activity relationships (SARs) studies showed that the presence of an ethyl group at pyridazine N-2 is associated with the best potency and selectivity profile.

  DOI：

  10.1021/jm970105l
• 作为产物：
  描述：

  1-(3-硝基苯基)-1,3-丁二酮 在 sodium ethanolate 、 一水合肼 作用下， 以 乙醇 为溶剂， 反应 2.0h， 生成 3-Methyl-4-(3-nitro-phenyl)-6H-isoxazolo[3,4-d]pyridazin-7-one
  参考文献：
  名称：

  Novel Heterocyclic-Fused Pyridazinones as Potent and Selective Phosphodiesterase IV Inhibitors

  摘要：

  A series of 6-aryl-4,5-heterocyclic-fused pyridazinones were designed and synthesized as selective phosphodiesterase (PDE) TV inhibitors. Biological evaluation of these compounds demonstrated a good selectivity profile toward the PDE TV family and greatly attenuated affinity for the Rolipram high-affinity binding site that seems to be responsible for undesiderable side effects. Structure-activity relationships (SARs) studies showed that the presence of an ethyl group at pyridazine N-2 is associated with the best potency and selectivity profile.

  DOI：

  10.1021/jm970105l

文献信息

• Isoxazolo-[3,4-<i>d</i>]-pyridazin-7-(6<i>H</i>)-one as a Potential Substrate for New Aldose Reductase Inhibitors
  作者：Luca Costantino、Giulio Rastelli、M. Cristina Gamberini、M. Paola Giovannoni、Vittorio Dal Piaz、Paola Vianello、Daniela Barlocco

  DOI：10.1021/jm981107o

  日期：1999.6.1

  5-acetyl-4-amino-(4-nitro)-6-substituted-3(2H)pyridazinones (3, 4) were used as simplified substrates for the synthesis of new aldose reductase inhibitors with respect to the previously reported 5, 6-dihydrobenzo[h]cinnolin-3(2H)one-2 acetic acids (1). Moreover, a few derivatives lacking the 5-acetyl group were prepared. Several compounds derived from 2 displayed inhibitory properties comparable to those

  异恶唑-[3,4-d]-哒嗪-7-（6H）-一（2）及其相应的开放衍生物5-乙酰基-4-氨基-（4-硝基）-6-取代的3（2H）相对于先前报道的5，6-二氢苯并[h] cinnolin-3（2H）one-2乙酸（1），哒嗪酮（3，4）被用作合成新的醛糖还原酶抑制剂的简化底物。此外，制备了一些缺少5-乙酰基的衍生物。衍生自2的几种化合物具有与索比尼尔相当的抑制特性。在这一类中，带有吸电子取代基的苯基在6位上的存在被证明是有益的，而与它在环上的位置（5g，jl）无关。乙酸衍生物比丙酸和丁酸类似物更有效。相反，所有的单环化合物（6-8）都是无活性的或仅是弱活性的。还研究了3-甲基-4-（对氯苯基）异唑并-[3,4-d]-哒嗪-7-（6H）-一乙酸（5g），它是最有效的衍生物。分子建模研究，以评估与模型1在与酶的相互作用中可能存在的相似性。
• Novel Heterocyclic-Fused Pyridazinones as Potent and Selective Phosphodiesterase IV Inhibitors
  作者：Vittorio Dal Piaz、Maria Paola Giovannoni、Carla Castellana、José Maria Palacios、Jorge Beleta、Teresa Doménech、Victor Segarra

  DOI：10.1021/jm970105l

  日期：1997.5.1

  A series of 6-aryl-4,5-heterocyclic-fused pyridazinones were designed and synthesized as selective phosphodiesterase (PDE) TV inhibitors. Biological evaluation of these compounds demonstrated a good selectivity profile toward the PDE TV family and greatly attenuated affinity for the Rolipram high-affinity binding site that seems to be responsible for undesiderable side effects. Structure-activity relationships (SARs) studies showed that the presence of an ethyl group at pyridazine N-2 is associated with the best potency and selectivity profile.