5-acetyl-4-aminopyridazinone | 17335-08-9

• 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: 5-acetyl-4-aminopyridazinone
• 英文别名: 5-acetyl-4-amino-6-phenyl-2H-pyridazin-3-one；4-acetyl-5-amino-3-phenyl-1H-pyridazin-6-one
• CAS: 17335-08-9
• 化学式: C₁₂H₁₁N₃O₂
• 分子量: 229.238
• InChiKey: CHCVZNBXYDIASW-UHFFFAOYSA-N

物化性质

• 密度：
  1.35±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  17
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  84.6
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  5-acetyl-4-aminopyridazinone 在 氢溴酸 、 溴 、 溶剂黄146 作用下， 反应 5.0h， 以64%的产率得到4-amino-5-(2-bromoacetyl)-6-phenylpyridazin-3(2H)-one
  参考文献：
  名称：

  Further Studies on Arylpiperazinyl Alkyl Pyridazinones: Discovery of an Exceptionally Potent, Orally Active, Antinociceptive Agent in Thermally Induced Pain

  摘要：

  A number of pyridazinone derivatives bearing all arylpiperazinylalkyl chain were synthesized and tested icv in it model of acute nociception induced by thermal stimuli in mice (tail flick). The most interesting and potent compound in this series was 6a, which showed an ED50 = 3.5 mu g, a value about 3-fold higher with respect to morphine by the same route of administration. When administered per os, 6a was 4-fold more potent than morphine in the same test, suggesting it significant bioavailability. The same compound also showed high potency in the hot plate test. The antinociceptive effect of 6a was completely reversed by pretreatment with yohimbine both in the hot plate test and in the tail flick test. This demonstrated the involvement of the adrenergic system, which was confirmed by in vitro radioligand binding studies.

  DOI：

  10.1021/jm900458r
• 作为产物：
  描述：

  3-甲基-4-苯基异恶唑并[3,4-d]哒嗪-7(6H)-酮 在 palladium on activated charcoal 一水合肼 作用下， 以 乙醇 为溶剂， 以92%的产率得到5-acetyl-4-aminopyridazinone
  参考文献：
  名称：

  异恶唑-[3,4-d]-哒嗪-7-（6H）-作为新型醛糖还原酶抑制剂的潜在底物。

  摘要：

  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。

  DOI：

  10.1021/jm981107o

文献信息

• Arylpiperazinylalkylpyridazinones and Analogues as Potent and Orally Active Antinociceptive Agents:  Synthesis and Studies on Mechanism of Action
  作者：Nicoletta Cesari、Claudio Biancalani、Claudia Vergelli、Vittorio Dal Piaz、Alessia Graziano、Pierfrancesco Biagini、Carla Ghelardini、Nicoletta Galeotti、Maria Paola Giovannoni

  DOI：10.1021/jm060743g

  日期：2006.12.1

  arylpiperazinylalkylpyridazinones structurally related to the previously described lead A (5-[4-(3-chlorophenyl)piperazin-1-yl]-propyl}-3-methyl-7-phenylisossazolo[4,5-d] pyridazin-4-(5H)-one) were synthesized and tested for their analgesic activity. Many of the tested molecules, at the dose of 20 mg kg-1 p.o., showed high antinociceptive activity, in particular, compounds 5a, 11c, 15a, 21 and 22, which were

  在结构上与先前描述的铅A（5-[4-（3-氯苯基）哌嗪-1-基]-丙基} -3-甲基-7-苯基异s唑并[4,5-d]哒嗪-合成4-（5H）-一）并测试其镇痛活性。许多受试分子的剂量为20 mg kg-1 po，表现出很高的抗伤害感受活性，尤其是化合物5a，11c，15a，21和22，能够将腹部收缩的数量减少50多种％在扭体测试中。铅A的药理研究使我们阐明了该化合物的作用机理，表明它通过抑制去甲肾上腺素的再摄取而发挥了镇痛作用。用α2-拮抗剂育亨宾预处理可以完全防止某些最有趣的新分子的抗伤害感受，
• 4-Amino-5-vinyl-3(2H)-pyridazinones and analogues as potent antinociceptive agents: Synthesis, SARs, and preliminary studies on the mechanism of action
  作者：Claudia Vergelli、Maria Paola Giovannoni、Stefano Pieretti、Amalia Di Giannuario、Vittorio Dal Piaz、Pierfrancesco Biagini、Claudio Biancalani、Alessia Graziano、Nicoletta Cesari

  DOI：10.1016/j.bmc.2007.05.035

  日期：2007.8

  A series of 4-amino-5-vinyl-3(2H)-pyridazinones and analogues were synthesized and their antinociceptive effect was evaluated in the mouse abdominal constriction model. Several of the novel compounds showed ED(50) values in the range 6-20mg/kg/sc and demonstrated to be able to completely protect all the treated animals from the effect of the noxious stimulus at 30 mg/kg/sc. SAR studies confirmed the

  合成了一系列的4-氨基-5-乙烯基-3（2H）-哒嗪酮及其类似物，并在小鼠腹部收缩模型中评估了它们的抗伤害作用。几种新化合物的ED（50）值在6-20mg / kg / sc范围内，并证明能够完全保护所有处理过的动物免受30 mg / kg / sc的有害刺激的影响。SAR研究证实，二嗪系统第4位的氨基或取代的氨基官能团和第5位的乙烯基具有重要的作用。
• 4-Amino-3(2H)-pyridazinones bearing arylpiperazinylalkyl groups and related compounds: synthesis and antinociceptive activity
  作者：Vittorio Dal Piaz、Claudia Vergelli、Maria Paola Giovannoni、Mark A Scheideler、Giuseppe Petrone、Paola Zaratin

  DOI：10.1016/s0014-827x(03)00162-9

  日期：2003.11

  A series of 4-amino-3(2H)-pyridazinones substituted at position 2 with arylpiperazinylalkyl groups and analogues were synthesized and their antinociceptive effect was evaluated in the mouse abdominal constriction model. Preliminary SARs studies were performed. Several of the novel compounds dosed at 100 mg/kg s.c. significantly reduced the number of writhes induced by the noxious stimulus. Compound 12e showed 100% inhibition of writhes and was able to protect all the treated animals from the effect of the chemical stimulus. Subsequent dose-response studies revealed 12e to be almost 40-fold more potent than the structurally related Emorfazone.
• Piaz, Vittorio Dal; Ciciani, Giovanna; Giovannoni, Maria Paola, Heterocycles, 1991, vol. 32, # 6, p. 1173 - 1179
  作者：Piaz, Vittorio Dal、Ciciani, Giovanna、Giovannoni, Maria Paola

  DOI：——

  日期：——
• Isoxazolo-[3,4- d ]-pyridazin-7-(6 H )-ones and their Corresponding 4,5-Disubstituted-3-(2 H )-pyridazinone Analogues as New Substrates for α 1 -Adrenoceptor Selective Antagonists: Synthesis, Modeling, and Binding Studies
  作者：Federica Montesano、Daniela Barlocco、Vittorio Dal Piaz、Amedeo Leonardi、Elena Poggesi、Francesca Fanelli、Piero G. De Benedetti

  DOI：10.1016/s0968-0896(98)00056-x

  日期：1998.7

  A series of phenylpiperazinylalkyl moieties were attached to monocyclic or bicyclic substituted pyridazinones and the new compounds tested for their affinity towards alpha(1)-adrenoceptor and its alpha(1a), alpha(1b) and alpha(1d) subtypes, as well as serotonin S-HT1A receptor. Several analogues (5, 6, 9, and 10) showed remarkable potency and selectivity towards alpha(1a), and alpha(1d) with respect to alpha(1b) subtype. None of the test compounds exhibited significant affinity for 5-HT1A receptor. Finally, on the basis of the alpha(1)-AR subtypes 3D models recently proposed, we have elaborated theoretical interaction models for the new compounds. The theoretical study allowed us to predict the affinity of the new compounds as well as to infer the structural/dynamics determinants of their interaction with the three alpha(1)-AR subtypes. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.