1-oxyl-2-(4-(dimethylamino)phenyl)-3-oxo-4,4,5,5-tetramethyl-2-imidazoline | 38582-76-2

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: 1-oxyl-2-(4-(dimethylamino)phenyl)-3-oxo-4,4,5,5-tetramethyl-2-imidazoline
• 英文别名: 2-(4'-N,N-dimethylphenyl)-4,4,5,5-tetramethylimidazolidine-3-oxide-1-oxyl；2-(4'-dimethylaminophenyl)-4,4,5,5-tetramethylimidazoline-3-oxide-1-oxyl；2-[4-(N,N-dimethylamino)phenyl]-4,4,5,5-tetramethylimidazoline-3-oxide-1-oxyl
• CAS: 38582-76-2
• 化学式: C₁₅H₂₂N₃O₂
• 分子量: 276.359
• InChiKey: JTPSJWIQHGVAPV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  20
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  36.2
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-oxyl-2-(4-(dimethylamino)phenyl)-3-oxo-4,4,5,5-tetramethyl-2-imidazoline 在 盐酸 、 sodium nitrite 作用下， 以 甲醇 为溶剂， 反应 1.0h， 以47%的产率得到1-oxyl-2-(4-(dimethylamino)phenyl)-4,4,5,5-tetramethyl-2-imidazoline
  参考文献：
  名称：

  Novel 1-oxyl-2-substitutedphenyl-4,4,5,5-tetramethylimidazolines: Synthesis, selectively analgesic action, and QSAR analysis

  摘要：

  Based on the knowledge that imidazoline can result in analgesic action due to its selective binding with the prostacyclin receptor, 20 1-oxyl-2-substitutedphenyl-4,4,5,5-tetramethylimidazolines (3a-t) were prepared in moderate yields. At 0.13 mmol/kg dose, their in vivo analgesic activities were evaluated after the mice were administered at 30, 60, 90, and 150 min. Compared with the pain threshold (12.27 +/- 9.56-17.71 +/- 7.00%) of normal saline (NS) receiving mice, the pain threshold (23.42 +/- 8.14% to 102.58 +/- 10.66%) of 3a-t receiving mice increases significantly. Considering a prostacyclin receptor targeting analgesic agent usually had bleeding action and to appraise the bleeding risk, the in vivo tail bleeding time of 1.30 mmol/kg 3a-t receiving mice was found to be ranged from 116.3 +/- 8.2 s to 120.3 +/- 9.2 s, which was substantially equal to that (117.8 +/- 8.4 s to 119.0 +/- 8.6 s) of NS receiving mice. Based on the possibility of imidazoline acting as vasodilator, the in vitro vasorelaxations of 3a-t were tested using the rat aortic strip model. When the aortic strip contracted by noradrenaline (NE, final concentration 10(-7) mol/l) was treated with 3a-t (final concentration 5 x 10(-4) mol/l), only lower percentage inhibitions (6.55 +/- 5.70-37.40 +/- 4.07%) were recorded, implying that the vasorelaxation of 3a-t was neglectable. By selecting appropriate molecular descriptors generated from e-dragon server, the QSAR model of the analgesic activities of 3a-t was constructed using the multiple linear regression method. The established QSAR model showed reasonable accuracy and thus it is promising to be used for screening new 1-oxyl-2-substitutedphenyl-4,4,5,5-tetramethylimidazoline derivatives as analgesic agents. (c) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2007.02.023
• 作为产物：
  描述：

  2,3-二甲基-2,3-二硝基丁烷 在 氯化铵 、 lead dioxide 、 锌 作用下， 以 四氢呋喃 、 甲醇 、 水 为溶剂， 反应 35.33h， 生成 1-oxyl-2-(4-(dimethylamino)phenyl)-3-oxo-4,4,5,5-tetramethyl-2-imidazoline
  参考文献：
  名称：

  作为自由基清除剂的新型2-取代硝酰基硝基氧化合物：合成，生物学评估和结构-活性关系。

  摘要：

  为了开发具有增强的自由基清除剂性能的更有效的小分子，我们设计并合成了一系列硝酰基硝基氧衍生物4a-h。基于Ach诱导的血管舒张测定法发现了前导化合物4f。基于该支架的进一步化学修饰提供了一系列新的2-取代的苯基亚硝酰基硝基氧化物衍生物6a-s。基于PC12细胞存活测定法，新合成的化合物6a-s具有改善的自由基清除剂的活性。就NO，H（2）O（2）和OH的清除能力而言，化合物6g，n，o和s是一些最有效的化合物。2-取代的苯基亚硝基硝基氮氧化物具有较高的自由基清除活性，带有给电子基团（EDG）。相比之下，吸电子基团（EWG）引入芳环导致其自由基清除活性急剧下降。这些结果表明，芳香环的给电子基团（EDG）可能是影响这些化合物清除自由基行为的重要因素，清除自由基的能力很大程度上取决于苯环的位置和电子性质。取代基。新型的2-取代的硝酰基氮氧化物的增强的自由基清除能力可能是对抗ROS（活性氧）/ R

  DOI：

  10.1016/j.bmc.2006.04.016

文献信息

• Novel 2-substituted nitronyl nitroxides as free radical scavengers: Synthesis, biological evaluation and structure–activity relationship
  作者：Yihui Wu、Lanrong Bi、Wei Bi、Zeng Li、Ming Zhao、Chao Wang、Jingfang Ju、Shiqi Peng

  DOI：10.1016/j.bmc.2006.04.016

  日期：2006.8

  nitroxide derivatives 4a-h. A lead compound 4f was discovered based on Ach-induced vascorelaxation assay. Further chemical modification based on this scaffold provided a new series of 2-substituted phenylnitronyl nitroxide derivatives 6a-s. The newly synthesized compounds 6a-s possess improved radical scavenger's activity based on PC12 cell survival assay. Compounds 6g,n,o, and s are some of the most

  为了开发具有增强的自由基清除剂性能的更有效的小分子，我们设计并合成了一系列硝酰基硝基氧衍生物4a-h。基于Ach诱导的血管舒张测定法发现了前导化合物4f。基于该支架的进一步化学修饰提供了一系列新的2-取代的苯基亚硝酰基硝基氧化物衍生物6a-s。基于PC12细胞存活测定法，新合成的化合物6a-s具有改善的自由基清除剂的活性。就NO，H（2）O（2）和OH的清除能力而言，化合物6g，n，o和s是一些最有效的化合物。2-取代的苯基亚硝基硝基氮氧化物具有较高的自由基清除活性，带有给电子基团（EDG）。相比之下，吸电子基团（EWG）引入芳环导致其自由基清除活性急剧下降。这些结果表明，芳香环的给电子基团（EDG）可能是影响这些化合物清除自由基行为的重要因素，清除自由基的能力很大程度上取决于苯环的位置和电子性质。取代基。新型的2-取代的硝酰基氮氧化物的增强的自由基清除能力可能是对抗ROS（活性氧）/ R
• Nitronyl Nitroxide as a Coupling Partner: Pd-Mediated Cross-coupling of (Nitronyl nitroxide-2-ido)(triphenylphosphine)gold(I) with Aryl Halides
  作者：Ryu Tanimoto、Shuichi Suzuki、Masatoshi Kozaki、Keiji Okada

  DOI：10.1246/cl.131162

  日期：2014.5.5

  A cross-coupling reaction using nitronyl nitroxide (NN) as a coupling partner was developed: Refluxing a mixture of [AuI(NN-2-ido)(PPh3)] and aryl iodide (Ar–I) in THF in the presence of 10 mol % [Pd(PPh3)4] produced a cross-coupling product NN-Ar in a high yield. This method allowed the direct introduction of the NN radical onto various poly- and heterocyclic aromatic rings.

  开发了一种使用硝酮亚硝基（NN）作为偶联伙伴的交叉偶联反应：将[AuI(NN-2-ido)(PPh3)]和芳基碘（Ar–I）的混合物在THF中回流，并加入10 mol %的[Pd(PPh3)4]，可以高产率地生成交叉偶联产物NN-Ar。该方法允许将NN自由基直接引入各种多环和杂环芳香环。
• Design, Preparation, and Electronic Structure of High-Spin Cation Diradicals Derived from Amine-Based Spin-Polarized Donors
  作者：Hiromi Sakurai、Akira Izuoka、Tadashi Sugawara

  DOI：10.1021/ja994547t

  日期：2000.10.1

  Amine-based donor radicals, such as dimethylamino-, diethylamino- and morpholinonitronyl nitroxides, were synthesized, and their donor abilities were examined by cyclic voltammetry. ESR spectra of the singly oxidized donor radicals showed ground state triplet signals derived from the cation radicals of these donor radicals. The result was interpreted by the presence of the ferromagnetic coupling between

  合成了基于胺的供体自由基，如二甲氨基、二乙氨基和吗啉硝基氮氧化物，并通过循环伏安法检查了它们的供体能力。单氧化供体自由基的 ESR 光谱显示来自这些供体自由基的阳离子自由基的基态三线态信号。结果是通过产生的 π-自旋和自由基单元上的局部未配对电子之间存在铁磁耦合来解释的。根据分子轨道计算，这两个自旋之间的铁磁耦合源于位于自由基单元上的 SOMO 和由单电子氧化时供体自由基的 HOMO 衍生的 SOMO' 之间的空间共享性质。所以，这些供体自由基的阳离子自由基可以被认为是三亚甲基甲烷的杂类似物。为了扩展供体单元的π-电子结构，合成了对和间二甲氨基苯基硝酰基氮氧化合物，并...
• pH-Switchable Through-Space Interaction of Organic Radicals within a Self-Assembled Coordination Cage
  作者：Koji Nakabayashi、Masaki Kawano、Makoto Fujita

  DOI：10.1002/anie.200501568

  日期：2005.8.19
• Novel 1-oxyl-2-substitutedphenyl-4,4,5,5-tetramethylimidazolines: Synthesis, selectively analgesic action, and QSAR analysis
  作者：Ming Zhao、Zheng Li、Li Peng、Yu-Rong Tang、Chao Wang、Ziding Zhang、Shiqi Peng

  DOI：10.1016/j.bmc.2007.02.023

  日期：2007.4

  Based on the knowledge that imidazoline can result in analgesic action due to its selective binding with the prostacyclin receptor, 20 1-oxyl-2-substitutedphenyl-4,4,5,5-tetramethylimidazolines (3a-t) were prepared in moderate yields. At 0.13 mmol/kg dose, their in vivo analgesic activities were evaluated after the mice were administered at 30, 60, 90, and 150 min. Compared with the pain threshold (12.27 +/- 9.56-17.71 +/- 7.00%) of normal saline (NS) receiving mice, the pain threshold (23.42 +/- 8.14% to 102.58 +/- 10.66%) of 3a-t receiving mice increases significantly. Considering a prostacyclin receptor targeting analgesic agent usually had bleeding action and to appraise the bleeding risk, the in vivo tail bleeding time of 1.30 mmol/kg 3a-t receiving mice was found to be ranged from 116.3 +/- 8.2 s to 120.3 +/- 9.2 s, which was substantially equal to that (117.8 +/- 8.4 s to 119.0 +/- 8.6 s) of NS receiving mice. Based on the possibility of imidazoline acting as vasodilator, the in vitro vasorelaxations of 3a-t were tested using the rat aortic strip model. When the aortic strip contracted by noradrenaline (NE, final concentration 10(-7) mol/l) was treated with 3a-t (final concentration 5 x 10(-4) mol/l), only lower percentage inhibitions (6.55 +/- 5.70-37.40 +/- 4.07%) were recorded, implying that the vasorelaxation of 3a-t was neglectable. By selecting appropriate molecular descriptors generated from e-dragon server, the QSAR model of the analgesic activities of 3a-t was constructed using the multiple linear regression method. The established QSAR model showed reasonable accuracy and thus it is promising to be used for screening new 1-oxyl-2-substitutedphenyl-4,4,5,5-tetramethylimidazoline derivatives as analgesic agents. (c) 2007 Elsevier Ltd. All rights reserved.