ethyl 3-(3-(dimethylamino)phenyl)-3-oxopropanoate

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: ethyl 3-(3-(dimethylamino)phenyl)-3-oxopropanoate
• 英文别名: ethyl 3-[3-(dimethylamino)phenyl]-3-oxopropanoate
• 化学式: C₁₃H₁₇NO₃
• 分子量: 235.283
• InChiKey: ZVDQFFONGKNZNI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  17
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  46.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  ethyl 3-(3-(dimethylamino)phenyl)-3-oxopropanoate 在 1,2,3,4,5,6,7,8-八硫杂环辛烷 、 tetraphosphorus decasulfide 、 六甲基二硅氧烷 作用下， 以 5,5-dimethyl-1,3-cyclohexadiene 为溶剂， 生成 5-(3-(dimethylamino)phenyl)-3H-1,2-dithiole-3-thione
  参考文献：
  名称：

  Synthesis of Dithiolethiones and Identification of Potential Neuroprotective Agents via Activation of Nrf2-Driven Antioxidant Enzymes

  摘要：

  Oxidative stress is implicated in the pathogenesis of a wide variety of neurodegenerative disorders, and accordingly, dietary supplement of exogenous antioxidants or/and upregulation of the endogenous antioxidant defense system are promising for therapeutic intervention or chemoprevention of neurodegenerative diseases. Nrf2, a master regulator of the cellular antioxidant machinery, cardinally participates in the transcription of cytoprotective genes against oxidative/electrophilic stresses. Herein, we report the synthesis of 59 structurally diverse dithiolethiones and evaluation of their neuroprotection against 6-hydroxydopamine- or H2O2 -induced oxidative damages in PC12 cells, a neuron-like rat pheochromocytoma cell line. Initial screening identified compounds 10 and 11 having low cytotoxicity but conferring remarkable protection on PC12 cells from oxidative-mediated damages. Further studies demonstrated that both compounds upregulated a battery of antioxidant genes as well as corresponding genes' products. Significantly, silence of Nrf2 expression abolishes cytoprotection of 10 and 11, indicating targeting Nrf2 activation is pivotal for their cellular functions. Taken together, the two lead compounds discovered here with potent neuroprotective functions against oxidative stress via Nrf2 activation merit further development as therapeutic or chemopreventive candidates for neurodegenerative disorders.

  DOI：

  10.1021/acs.jafc.9b06360
• 作为产物：
  描述：

  间二甲氨基苯甲酸 在 三乙胺 、 magnesium chloride 作用下， 以 四氢呋喃 为溶剂， 反应 6.0h， 生成 ethyl 3-(3-(dimethylamino)phenyl)-3-oxopropanoate
  参考文献：
  名称：

  Synthesis of Dithiolethiones and Identification of Potential Neuroprotective Agents via Activation of Nrf2-Driven Antioxidant Enzymes

  摘要：

  Oxidative stress is implicated in the pathogenesis of a wide variety of neurodegenerative disorders, and accordingly, dietary supplement of exogenous antioxidants or/and upregulation of the endogenous antioxidant defense system are promising for therapeutic intervention or chemoprevention of neurodegenerative diseases. Nrf2, a master regulator of the cellular antioxidant machinery, cardinally participates in the transcription of cytoprotective genes against oxidative/electrophilic stresses. Herein, we report the synthesis of 59 structurally diverse dithiolethiones and evaluation of their neuroprotection against 6-hydroxydopamine- or H2O2 -induced oxidative damages in PC12 cells, a neuron-like rat pheochromocytoma cell line. Initial screening identified compounds 10 and 11 having low cytotoxicity but conferring remarkable protection on PC12 cells from oxidative-mediated damages. Further studies demonstrated that both compounds upregulated a battery of antioxidant genes as well as corresponding genes' products. Significantly, silence of Nrf2 expression abolishes cytoprotection of 10 and 11, indicating targeting Nrf2 activation is pivotal for their cellular functions. Taken together, the two lead compounds discovered here with potent neuroprotective functions against oxidative stress via Nrf2 activation merit further development as therapeutic or chemopreventive candidates for neurodegenerative disorders.

  DOI：

  10.1021/acs.jafc.9b06360

文献信息

• Amide/Ester Cross-Coupling via C–N/C–H Bond Cleavage: Synthesis of β-Ketoesters
  作者：Jiajia Chen、Devaneyan Joseph、Yuanzhi Xia、Sunwoo Lee

  DOI：10.1021/acs.joc.0c02868

  日期：2021.4.16

  Activated primary, secondary, and tertiary amides were coupled with enolizable esters in the presence of LiHMDS to obtain good yields of β-ketoesters at room temperature. Notably, this protocol provides an efficient, mild, and high chemoselectivity method to synthesis of β-alkylketoesters using the cross-coupling between aliphatic amides and esters. Meanwhile, gram-scale secondary and primary amides reacted

  在LiHMDS的存在下，将活化的伯，仲和叔酰胺与可烯醇化的酯偶联，在室温下获得良好的β-酮酸酯收率。值得注意的是，该方案为脂肪族酰胺和酯之间的交叉偶联提供了一种高效，温和，高化学选择性的方法来合成β-烷基酮酸酯。同时，克级仲酰胺和伯酰胺经由原位生成的活化叔酰胺反应，并与酯偶联时表现出良好的反应性。
• Synthesis of Dithiolethiones and Identification of Potential Neuroprotective Agents via Activation of Nrf2-Driven Antioxidant Enzymes
  作者：Zi-Long Song、Feifei Bai、Baoxin Zhang、Jianguo Fang

  DOI：10.1021/acs.jafc.9b06360

  日期：2020.2.19

  Oxidative stress is implicated in the pathogenesis of a wide variety of neurodegenerative disorders, and accordingly, dietary supplement of exogenous antioxidants or/and upregulation of the endogenous antioxidant defense system are promising for therapeutic intervention or chemoprevention of neurodegenerative diseases. Nrf2, a master regulator of the cellular antioxidant machinery, cardinally participates in the transcription of cytoprotective genes against oxidative/electrophilic stresses. Herein, we report the synthesis of 59 structurally diverse dithiolethiones and evaluation of their neuroprotection against 6-hydroxydopamine- or H2O2 -induced oxidative damages in PC12 cells, a neuron-like rat pheochromocytoma cell line. Initial screening identified compounds 10 and 11 having low cytotoxicity but conferring remarkable protection on PC12 cells from oxidative-mediated damages. Further studies demonstrated that both compounds upregulated a battery of antioxidant genes as well as corresponding genes' products. Significantly, silence of Nrf2 expression abolishes cytoprotection of 10 and 11, indicating targeting Nrf2 activation is pivotal for their cellular functions. Taken together, the two lead compounds discovered here with potent neuroprotective functions against oxidative stress via Nrf2 activation merit further development as therapeutic or chemopreventive candidates for neurodegenerative disorders.