ethyl 2,4-dimethyl-6-nitro-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate | 847671-07-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并恶嗪类
• 英文名称: ethyl 2,4-dimethyl-6-nitro-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate
• 英文别名: ethyl 2,4-dimethyl-6-nitro-2H-1,4-benzoxazin-3(4H)-one-2-carboxylate；Ethyl 2,4-dimethyl-6-nitro-3-oxo-1,4-benzoxazine-2-carboxylate
• CAS: 847671-07-2
• 化学式: C₁₃H₁₄N₂O₆
• 分子量: 294.264
• InChiKey: CBFOBGGJGBPSGV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  21
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  102
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  ethyl 2,4-dimethyl-6-nitro-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate 在 偶氮二甲酸二异丙酯 、 dimethyl sulfide borane 、 palladium 10% on activated carbon 、 氢气 、 三苯基膦 作用下， 以 四氢呋喃 为溶剂， 反应 54.0h， 生成 4-[(6-amino-2,4-dimethyl-3,4-dihydro-2H-1,4-benzoxazin-2-yl)methoxy]benzonitrile
  参考文献：
  名称：

  Fluorinated dual antithrombotic compounds based on 1,4-benzoxazine scaffold

  摘要：

  Fluorinated 3,4-dihydro-2H-1,4-benzoxazine derivatives possessing both thrombin inhibitory and glycoprotein IIb/IIIa receptor antagonistic activities were prepared as potential dual antithrombotic compounds. Fluorine scan (3-fluorobenzyl, 4-fluorobenzyl, 3,4-difluorobenzyl and 3,5-difluorobenzyl substituted compounds) was performed in order to obtain 6-(carboxymethyl)(3,4-difluorobenzyl) amino compound (9i) as the most potent compound with balanced dual activity (K-i(Thr) = 0.33 +/- 0.07 mu M, IC50(GP IIb/IIIa) = 1.1 +/- 0.6 mu M). (C) 2012 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2012.01.059
• 作为产物：
  描述：

  2-氨基-4-硝基苯酚 在 potassium fluoride 、 sodium hydride 作用下， 以 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 生成 ethyl 2,4-dimethyl-6-nitro-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate
  参考文献：
  名称：

  2H-1,4-苯并恶嗪-3（4H）-一个支架的新型血小板纤维蛋白原受体拮抗剂的设计与合成。有系统的研究。

  摘要：

  在2H-1,4-苯并恶嗪-3（4H）-一个支架上制备了新的血小板糖蛋白IIb / IIIa（GP IIb / IIIa，整联蛋白alpha（IIb）beta3）拮抗剂。评估了它们在富含人血小板的血浆中的抗聚集活性以及它们对alpha（IIb）beta3和alpha（V）beta3整联蛋白的亲和力。研究了各种取代位置和侧链变化。与普遍接受的模型相反，含有乙酯作为天冬氨酸盐模拟物的化合物通常比相应的游离酸更具活性。我们建议对这些新化合物的观察行为进行解释。

  DOI：

  10.1016/j.ejmech.2004.09.004

文献信息

• 3,4-Dihydro-2<i>H</i>-1,4-benzoxazine Derivatives Combining Thrombin Inhibitory and Glycoprotein IIb/IIIa Receptor Antagonistic Activity as a Novel Class of Antithrombotic Compounds with Dual Function
  作者：Janez Ilaš、Žiga Jakopin、Tina Borštnar、Mojca Stegnar、Danijel Kikelj

  DOI：10.1021/jm8003448

  日期：2008.9.25

  3,4-Dihydro-2H-1,4-benzoxazine derivatives possessing both thrombin inhibitory and glycoprotein IIb/IIIa (GPIIb/IIIa) receptor antagonistic activities were obtained by combining mimetics of the D-Phe-Pro-Arg pharmacophore of thrombin inhibitors and the Arg-Gly-Asp pharmacophor of GPIIb/IIIa receptor antagonists in the same low molecular weight peptidomimetic compound. Systematic variation of the position of substituents around the 3,4-dihydro-2H-1,4-benzoxazine nucleus, the distance between the carboxylate and amidine moieties, together with additional substituents to fill the thrombin S-2 and S-3 pockets resulted in compounds displaying submicromolar inhibition constants (K-i) for thrombin and submicromolar IC50 for inhibition of binding of fibrinogen to platelet GPIIb/IIIa receptor. Some of these compounds, such as 17a, 17b, 17d, and 17h possessing a well balanced activity at both targets, are a good starting point for further optimization. Incorporation of anticoagulant and platelet antiaggregatory activity in the same molecule constitutes a promising approach toward novel antithrombotic agents.
• Thrombin inhibitors with lipid peroxidation and lipoxygenase inhibitory activities
  作者：Miloš Ilić、Christos Kontogiorgis、Dimitra Hadjipavlou-Litina、Janez Ilaš、Danijel Kikelj

  DOI：10.1016/j.bmcl.2011.06.089

  日期：2011.8

  Vascular oxidative stress, endothelial injury, and thrombosis are intertwined processes that display a synergistic pathological effect in many cardiovascular diseases. Antithrombotic therapy with anticoagulant and/or antiplatelet agents, combined with interventions against vascular oxidative stress and/or inflammation, both boosting endothelial antithrombotic potential, could display a synergistic action in the treatment of thrombosis. Of the compounds 10a-h and 11a-d, shown to possess thrombin inhibitory activity, 11a-d were found to display radical scavenging activity, 10a, 10d, and 10f were demonstrated to inhibit lipid peroxidation of linoleic acid, and 10b and 10h inhibited soybean lipoxygenase. The observed combination of thrombin inhibition with lipid peroxidation and/or lipoxygenase inhibitory activity makes compounds 10 and 11 interesting candidates for further investigations towards multiple antithrombotic drugs. (C) 2011 Elsevier Ltd. All rights reserved.
• Design and synthesis of novel platelet fibrinogen receptor antagonists with 2H-1,4-benzoxazine-3(4H)-one scaffold. A systematic study
  作者：Marko Anderluh、Jožko Cesar、Petra Štefanič、Danijel Kikelj、Damjan Janeš、Jernej Murn、Kristina Nadrah、Mojca Tominc、Elisabeth Addicks、Athanassios Giannis、Mojca Stegnar、Marija Sollner Dolenc

  DOI：10.1016/j.ejmech.2004.09.004

  日期：2005.1

  New platelet glycoprotein IIb/IIIa (GP IIb/IIIa, integrin alpha(IIb)beta3) antagonists were prepared on a 2H-1,4-benzoxazine-3(4H)-one scaffold. Their anti-aggregatory activities in human platelet rich plasma and their affinity towards alpha(IIb)beta3 and alpha(V)beta3 integrins were assessed. Various substitution positions and side chain variations were studied. In contrast to the generally accepted

  在2H-1,4-苯并恶嗪-3（4H）-一个支架上制备了新的血小板糖蛋白IIb / IIIa（GP IIb / IIIa，整联蛋白alpha（IIb）beta3）拮抗剂。评估了它们在富含人血小板的血浆中的抗聚集活性以及它们对alpha（IIb）beta3和alpha（V）beta3整联蛋白的亲和力。研究了各种取代位置和侧链变化。与普遍接受的模型相反，含有乙酯作为天冬氨酸盐模拟物的化合物通常比相应的游离酸更具活性。我们建议对这些新化合物的观察行为进行解释。
• Fluorinated dual antithrombotic compounds based on 1,4-benzoxazine scaffold
  作者：Miloš Ilić、Danijel Kikelj、Janez Ilaš

  DOI：10.1016/j.ejmech.2012.01.059

  日期：2012.4

  Fluorinated 3,4-dihydro-2H-1,4-benzoxazine derivatives possessing both thrombin inhibitory and glycoprotein IIb/IIIa receptor antagonistic activities were prepared as potential dual antithrombotic compounds. Fluorine scan (3-fluorobenzyl, 4-fluorobenzyl, 3,4-difluorobenzyl and 3,5-difluorobenzyl substituted compounds) was performed in order to obtain 6-(carboxymethyl)(3,4-difluorobenzyl) amino compound (9i) as the most potent compound with balanced dual activity (K-i(Thr) = 0.33 +/- 0.07 mu M, IC50(GP IIb/IIIa) = 1.1 +/- 0.6 mu M). (C) 2012 Elsevier Masson SAS. All rights reserved.