ethyl 2-methyl-6-(2-fluorophenyl)pyridine-3-carboxylate

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: ethyl 2-methyl-6-(2-fluorophenyl)pyridine-3-carboxylate
• 英文别名: Ethyl 6-(2-fluorophenyl)-2-methylpyridine-3-carboxylate；ethyl 6-(2-fluorophenyl)-2-methylpyridine-3-carboxylate
• 化学式: C₁₅H₁₄FNO₂
• mdl: MFCD25908277
• 分子量: 259.28
• InChiKey: WZTDSKXXQIIDCQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  19
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  39.2
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  ethyl 2-methyl-6-(2-fluorophenyl)pyridine-3-carboxylate 在 一水合肼 作用下， 生成
  参考文献：
  名称：

  Protective effect of novel substituted nicotine hydrazide analogues against hypoxic brain injury in neonatal rats via inhibition of caspase

  摘要：

  In hypoxic-ischemic injury of the brain of neonates, the level of caspase-3 was found to be aberrantly activated. Its overexpression leads to the alteration of cytoskeleton protein fodrin and loss of DNA repair enzyme which ultimately results in neurological impairment and disability. Concerning this, the present study was intended to develop novel nicotine hydrazide analogues as caspase inhibitors via efficient synthetic route. These compounds were subsequently tested for inhibitory activity against caspase-3 and -7 where they exhibit highly potent activity against caspase-3 revealing compound 5k as most potent inhibitor (IC50 = 19.4 +/- 2.5 mu M). In Western blot analysis, 5k considerably inhibits the overexpression of caspase-3. The aryl nicotinate of compound 5k, as indicated by molecular docking was found to engage His121 and critical enzyme thiols, i.e., Cys163 of caspase-3 for its potent activity. Moreover, histopathological examination of brain tissues and hippocampus neurons showed that compound 5k considerably improves the brain injury and exert neuroprotective effects in hypoxic-ischemic (HI). In brain homogenate, 5k significantly improves the activity of MDA, SOD, GSH-Px, CAT and T-AOC to exert its beneficial effect against oxidative stress induced by HI injury. (C) 2016 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2016.04.031
• 作为产物：
  描述：

  2'-氟苯乙酮 在 ammonium acetate 作用下， 以 5,5-dimethyl-1,3-cyclohexadiene 、 溶剂黄146 为溶剂， 生成 ethyl 2-methyl-6-(2-fluorophenyl)pyridine-3-carboxylate
  参考文献：
  名称：

  Novel 1,3,5‐triazine‐nicotinohydrazide derivatives induce cell arrest and apoptosis in osteosarcoma cancer cells and inhibit osteosarcoma in a patient‐derived orthotopic xenograft mouse model

  摘要：

  AbstractThe present study deals with developing novel 1,3,5‐triazine‐nicotinohydrazide derivatives as potent CDK9 inhibitors in a straightforward synthetic route with potent anti‐osteosarcoma activity. The most potent CDK9 inhibitor compound 5k inhibits proliferation of MG‐63 cells via induction of apoptosis and G2/M cell cycle arrest. It reduces tumor progression in the patient‐derived orthotopic xenograft (PDOX) mouse model with significant antioxidant and anti‐inflammatory activity. In tumor tissue homogenates, it caused significant inhibition of CDK9 and inhibited the phosphorylation of RNAPII ser2 and reduced MCL‐1 expression in Western blot analysis. Compound 5k also showed considerable bioavailability in SD mice. Our results demonstrated that compound 5k inhibits growth of OS in vitro and in vivo via inhibition of CDK9 which attenuated the downstream phosphorylation of RNAPII ser2 and represses expression of the anti‐apoptotic protein, MCL‐1 for the induction of apoptosis in OS.

  DOI：

  10.1111/cbdd.13986

文献信息

• Consecutive three- and four-component coupling-Bagley-Bohlmann-Rahtz syntheses of tri- and tetrasubstituted pyridines
  作者：Janis Dohe、Thomas J.J. Müller

  DOI：10.1515/znb-2016-0046

  日期：2016.6.1

  The concatenation of the modified Sonogashira alkynone synthesis and the Bagley-Bohlmann-Rahtz pyridine synthesis gives novel consecutive three- and four-component coupling-Bagley-Bohlmann-Rahtz (cBBR) syntheses of tri- and tetrasubstituted pyridines in a one-pot fashion. With these processes 15 differently substituted 3-ethoxycarbonyl 2-methylpyridines can be readily obtained in modest to moderate yields.

  修改后的Sonogashira炔酮合成与Bagley-Bohlmann-Rahtz吡啶合成的串联反应，以一锅法给出了新颖的连续三元和四元组分偶联-Bagley-Bohlmann-Rahtz (cBBR)合成方法，用于合成三取代和四取代吡啶。通过这些过程，可以轻松地以适度到中等产率获得15种不同取代的3-乙氧羰基-2-甲基吡啶。

• Protective effect of novel substituted nicotine hydrazide analogues against hypoxic brain injury in neonatal rats via inhibition of caspase
  作者：Chang-bo Deng、Juan Li、Lu-yi Li、Feng-jie Sun

  DOI：10.1016/j.bmcl.2016.04.031

  日期：2016.7

  In hypoxic-ischemic injury of the brain of neonates, the level of caspase-3 was found to be aberrantly activated. Its overexpression leads to the alteration of cytoskeleton protein fodrin and loss of DNA repair enzyme which ultimately results in neurological impairment and disability. Concerning this, the present study was intended to develop novel nicotine hydrazide analogues as caspase inhibitors via efficient synthetic route. These compounds were subsequently tested for inhibitory activity against caspase-3 and -7 where they exhibit highly potent activity against caspase-3 revealing compound 5k as most potent inhibitor (IC50 = 19.4 +/- 2.5 mu M). In Western blot analysis, 5k considerably inhibits the overexpression of caspase-3. The aryl nicotinate of compound 5k, as indicated by molecular docking was found to engage His121 and critical enzyme thiols, i.e., Cys163 of caspase-3 for its potent activity. Moreover, histopathological examination of brain tissues and hippocampus neurons showed that compound 5k considerably improves the brain injury and exert neuroprotective effects in hypoxic-ischemic (HI). In brain homogenate, 5k significantly improves the activity of MDA, SOD, GSH-Px, CAT and T-AOC to exert its beneficial effect against oxidative stress induced by HI injury. (C) 2016 Elsevier Ltd. All rights reserved.
• Novel 1,3,5‐triazine‐nicotinohydrazide derivatives induce cell arrest and apoptosis in osteosarcoma cancer cells and inhibit osteosarcoma in a patient‐derived orthotopic xenograft mouse model
  作者：Qing Su、Baolin Xu、Zhoubin Tian、Ziling Gong

  DOI：10.1111/cbdd.13986

  日期：2022.2

  AbstractThe present study deals with developing novel 1,3,5‐triazine‐nicotinohydrazide derivatives as potent CDK9 inhibitors in a straightforward synthetic route with potent anti‐osteosarcoma activity. The most potent CDK9 inhibitor compound 5k inhibits proliferation of MG‐63 cells via induction of apoptosis and G2/M cell cycle arrest. It reduces tumor progression in the patient‐derived orthotopic xenograft (PDOX) mouse model with significant antioxidant and anti‐inflammatory activity. In tumor tissue homogenates, it caused significant inhibition of CDK9 and inhibited the phosphorylation of RNAPII ser2 and reduced MCL‐1 expression in Western blot analysis. Compound 5k also showed considerable bioavailability in SD mice. Our results demonstrated that compound 5k inhibits growth of OS in vitro and in vivo via inhibition of CDK9 which attenuated the downstream phosphorylation of RNAPII ser2 and represses expression of the anti‐apoptotic protein, MCL‐1 for the induction of apoptosis in OS.