2,3-dihydro-6-hydroxy-2,2,5,7,8-pentamethyl-4H-1-benzopyran-4-one-oxime | 24700-12-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: 2,3-dihydro-6-hydroxy-2,2,5,7,8-pentamethyl-4H-1-benzopyran-4-one-oxime
• 英文别名: 6-hydroxy-2,2,5,7,8-pentamethyl-2,3-dihydro-4H-chromen-4-one oxime；4-hydroxyimino-2,2,5,7,8-pentamethyl-3H-chromen-6-ol
• CAS: 24700-12-7
• 化学式: C₁₄H₁₉NO₃
• 分子量: 249.31
• InChiKey: HORGORHQCFLPCS-UHFFFAOYSA-N

物化性质

• 沸点：
  427.9±45.0 °C(Predicted)
• 密度：
  1.19±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  18
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  62
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2,3-dihydro-6-hydroxy-2,2,5,7,8-pentamethyl-4H-1-benzopyran-4-one-oxime 在 sodium tetrahydroborate 、 四氯化钛 作用下， 以 乙二醇二甲醚 为溶剂， 以52%的产率得到4-amino-2,2,5,7,8-pentamethyl-6-chromanol
  参考文献：
  名称：

  5,7,8-Trimethyl-benzopyran and 5,7,8-Trimethyl-1,4-benzoxazine Aminoamide Derivatives as Novel Antiarrhythmics against Ischemia−Reperfusion Injury

  摘要：

  6-Hydroxy-5,7,8-trimethyl-benzopyran derivatives and 5,7,8-trimethyl-1,4-benzoxazine analogues substituted by the lidocaine pharmacophore aminoamide functionality at C4 of N4, respectively, were synthesized and evaluated against arrhythmias associated with ischemia-reperfusion injury. The antiarrhythmic effect of substitutents at positions C2 and C6 was examined. Six out of the 11 new derivatives, exhibited arrhythmia scores 1.0-1.3 versus the control (4.5 +/- 1.2), which was also reflected to the % premature beats (0.5-3.9), control (13.7 +/- 3.6). Selected compounds were further studied by a conventional microelectrode method. 2-diethylamino-1-(5,7,8-trimethyl-2-phenyl-2,3-dihydro-benzo[1,4]oxazin-4-yl)-ethanotic (50) and the trolox-inspired 4-(2-diethylamino-acetyl)-2,5,7,8-tetramethyl-3.4-dihydro-2H-benzo[1,4]oxazine-2-carboxylic acid ethyl ester (62) Suppress reperfusion arrhythmias and reduce malondialdehyde (MDA) content, leading to a fast recovery of the heart after ischemia-reperfusion. They exhibit combined class IB and class III antiarrhythmic properties, which constitutes them as promising compounds for further studies because, due to their multichannel "amiodarone like" effect, less proarrhythmic complications can be expected.

  DOI：

  10.1021/jm801228h
• 作为产物：
  描述：

  2-acetyl-3,5,6-trimethylhydroquinone 在 四氢吡咯 、 吡啶 、 盐酸羟胺 作用下， 以 乙醇 为溶剂， 生成 2,3-dihydro-6-hydroxy-2,2,5,7,8-pentamethyl-4H-1-benzopyran-4-one-oxime
  参考文献：
  名称：

  Synthesis of chroman analogues of lipoic acid and evaluation of their activity against reperfusion arrhythmias

  摘要：

  Novel hybrids of lipoic acid and trolox connected through triamine spacers as well as analogues in which the lipoic acid was attached at different positions of the chroman moiety of vitamin E through an amide bond, were synthesized and exhibited strong inhibition of the microsomal lipid peroxidation. Moreover, the new molecules, at 1 muM concentration, reduced reperfusion arrhythimas and MDA content on isolated rat heart preparations, with the 2- and 5-subtituted chromans possessing the better cardioprotective activity. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2004.07.012

文献信息

• 5,7,8-Trimethyl-benzopyran and 5,7,8-Trimethyl-1,4-benzoxazine Aminoamide Derivatives as Novel Antiarrhythmics against Ischemia−Reperfusion Injury
  作者：Eftychia N. Koini、Panagiota Papazafiri、Athanasios Vassilopoulos、Maria Koufaki、Zoltán Horváth、István Koncz、László Virág、Gy J. Papp、Andràs Varró、Theodora Calogeropoulou

  DOI：10.1021/jm801228h

  日期：2009.4.23

  6-Hydroxy-5,7,8-trimethyl-benzopyran derivatives and 5,7,8-trimethyl-1,4-benzoxazine analogues substituted by the lidocaine pharmacophore aminoamide functionality at C4 of N4, respectively, were synthesized and evaluated against arrhythmias associated with ischemia-reperfusion injury. The antiarrhythmic effect of substitutents at positions C2 and C6 was examined. Six out of the 11 new derivatives, exhibited arrhythmia scores 1.0-1.3 versus the control (4.5 +/- 1.2), which was also reflected to the % premature beats (0.5-3.9), control (13.7 +/- 3.6). Selected compounds were further studied by a conventional microelectrode method. 2-diethylamino-1-(5,7,8-trimethyl-2-phenyl-2,3-dihydro-benzo[1,4]oxazin-4-yl)-ethanotic (50) and the trolox-inspired 4-(2-diethylamino-acetyl)-2,5,7,8-tetramethyl-3.4-dihydro-2H-benzo[1,4]oxazine-2-carboxylic acid ethyl ester (62) Suppress reperfusion arrhythmias and reduce malondialdehyde (MDA) content, leading to a fast recovery of the heart after ischemia-reperfusion. They exhibit combined class IB and class III antiarrhythmic properties, which constitutes them as promising compounds for further studies because, due to their multichannel "amiodarone like" effect, less proarrhythmic complications can be expected.
• Synthesis of chroman analogues of lipoic acid and evaluation of their activity against reperfusion arrhythmias
  作者：Maria Koufaki、Anastasia Detsi、Elissavet Theodorou、Christina Kiziridi、Theodora Calogeropoulou、Athanasios Vassilopoulos、Angeliki P. Kourounakis、Eleni Rekka、Panos N. Kourounakis、Catherine Gaitanaki、Panagiota Papazafiri

  DOI：10.1016/j.bmc.2004.07.012

  日期：2004.9

  Novel hybrids of lipoic acid and trolox connected through triamine spacers as well as analogues in which the lipoic acid was attached at different positions of the chroman moiety of vitamin E through an amide bond, were synthesized and exhibited strong inhibition of the microsomal lipid peroxidation. Moreover, the new molecules, at 1 muM concentration, reduced reperfusion arrhythimas and MDA content on isolated rat heart preparations, with the 2- and 5-subtituted chromans possessing the better cardioprotective activity. (C) 2004 Elsevier Ltd. All rights reserved.