diethyl {[(4-methoxypyridin-3-yl)amino]methylidene}propanedioate | 64761-16-6

• 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: diethyl {[(4-methoxypyridin-3-yl)amino]methylidene}propanedioate
• 英文别名: Diethyl-<(4-methoxy-3-pyridyl)-amino>-methylenmalonat；Diethyl-[(4-methoxy-3-pyridyl)-amino]-methylenmalonat；Diethyl 2-{[(4-methoxy-3-pyridyl)amino]methylidene}malonate；diethyl 2-[[(4-methoxypyridin-3-yl)amino]methylidene]propanedioate
• CAS: 64761-16-6
• 化学式: C₁₄H₁₈N₂O₅
• 分子量: 294.307
• InChiKey: ZKPKLJJSYLJMBS-UHFFFAOYSA-N

物化性质

• 熔点：
  100-101 °C
• 沸点：
  385.4±42.0 °C(Predicted)
• 密度：
  1?+-.0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  21
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  86.8
• 氢给体数：
  1
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  diethyl {[(4-methoxypyridin-3-yl)amino]methylidene}propanedioate 在 喹啉 、 氢溴酸 、 三溴氧磷 作用下， 以 二苯醚 、 乙腈 为溶剂， 反应 6.42h， 生成 4,8-dibromo-1,5-naphthyridine
  参考文献：
  名称：

  Novel multifunctional organic semiconductor materials based on 4,8-substituted 1,5-naphthyridine: synthesis, single crystal structures, opto-electrical properties and quantum chemistry calculation

  摘要：

  一系列4,8取代的1,5-萘啶（1a–1h）已成功合成，通过4,8-二溴-1,5-萘啶（4）与相应的硼酸（2a–2h）在催化性醋酸钯的存在下进行铃木交叉偶联反应，收率为41.4%–75.8%，并得到良好表征。它们在热稳定性方面表现优异，具有高相变温度（高于186°C）。化合物1b、1e和1f分别在单斜晶系中结晶，空间群为P21/c、P21/c和P21/n。所有化合物表现出最低能量吸收带（λmaxAbs: 294–320 nm），揭示了较低的光学带隙（2.77–3.79 eV）。这些材料在二氯甲烷稀溶液中发出蓝色荧光，λmaxEm范围为434–521 nm，在固态中为400–501 nm。4,8取代的1,5-萘啶1a–1h的估计电子亲合能（EA）为2.38–2.72 eV，适合用作电子传输材料，而离子化势（IP）为4.85–5.04 eV，促进了优良的孔注入/孔传输材料特性。使用DFT B3LYP/6-31G*进行的量子化学计算显示，最低未占分子轨道（LUMO）几乎相同，范围为−2.39至−2.19 eV，最高占分子轨道（HOMO）范围为−5.33至−6.84 eV。这些结果表明，具有简单结构的4,8取代1,5-萘啶1a–1h可能是开发高效OLED的有希望的蓝色发射（或蓝绿色发射）材料、电子传输材料以及孔注入/孔传输材料。

  DOI：

  10.1039/c2ob25926e
• 作为产物：
  描述：

  4-羟基-3-硝基吡啶 在 盐酸 、 铁粉 作用下， 以 甲醇 、 水 、 甲苯 为溶剂， 生成 diethyl {[(4-methoxypyridin-3-yl)amino]methylidene}propanedioate
  参考文献：
  名称：

  Novel multifunctional organic semiconductor materials based on 4,8-substituted 1,5-naphthyridine: synthesis, single crystal structures, opto-electrical properties and quantum chemistry calculation

  摘要：

  一系列4,8取代的1,5-萘啶（1a–1h）已成功合成，通过4,8-二溴-1,5-萘啶（4）与相应的硼酸（2a–2h）在催化性醋酸钯的存在下进行铃木交叉偶联反应，收率为41.4%–75.8%，并得到良好表征。它们在热稳定性方面表现优异，具有高相变温度（高于186°C）。化合物1b、1e和1f分别在单斜晶系中结晶，空间群为P21/c、P21/c和P21/n。所有化合物表现出最低能量吸收带（λmaxAbs: 294–320 nm），揭示了较低的光学带隙（2.77–3.79 eV）。这些材料在二氯甲烷稀溶液中发出蓝色荧光，λmaxEm范围为434–521 nm，在固态中为400–501 nm。4,8取代的1,5-萘啶1a–1h的估计电子亲合能（EA）为2.38–2.72 eV，适合用作电子传输材料，而离子化势（IP）为4.85–5.04 eV，促进了优良的孔注入/孔传输材料特性。使用DFT B3LYP/6-31G*进行的量子化学计算显示，最低未占分子轨道（LUMO）几乎相同，范围为−2.39至−2.19 eV，最高占分子轨道（HOMO）范围为−5.33至−6.84 eV。这些结果表明，具有简单结构的4,8取代1,5-萘啶1a–1h可能是开发高效OLED的有希望的蓝色发射（或蓝绿色发射）材料、电子传输材料以及孔注入/孔传输材料。

  DOI：

  10.1039/c2ob25926e

文献信息

• A One-Pot Diazotation–Fluorodediazoniation Reaction and Fluorine Gas for the Production of Fluoronaphthyridines
  作者：Stefan Abele、Gunther Schmidt、Matthew J. Fleming、Heinz Steiner

  DOI：10.1021/op500100b

  日期：2014.8.15

  Several synthetic routes to 7-fluoro-2-methoxy-8-methyl-1,5-naphthyridine (1) are presented, and their suitability for scale-up is discussed. The way of introducing the fluorine atom is crucial. Early routes start from commercially available fluorinated building blocks or employ F+ reagents like Select Fluor and delivered up to 70 kg of 7-fluoro-2-methoxy-1,5-naphthyridine (18). To prepare for larger scales, the focus turned to the use of HF or elemental fluorine, both one of the cheapest sources of fluorine. The first method, a one-pot diazotation-fluorodediazoniation with 6-methoxy-1,5-naphthyridin-3-amine (9) in HF gave the fluorinated naphthyridine 18 in high yield and purity without isolation of the unstable diazonium salt, the latter being a severe drawback of the related Balz-Schiemann protocol. The second method relies on the use of fluorine gas for a surprisingly selective ortho-fluorination of 6-methoxy-1,5-naphthyridin-4-ol (10).
• BROWN S. B.; DEWAR M. J. S., J. ORG. CHEM. 1978, 43, NO 7, 1331-1337
  作者：BROWN S. B.、 DEWAR M. J. S.

  DOI：——

  日期：——
• Second generation of diazachrysenes: Protection of Ebola virus infected mice and mechanism of action
  作者：Života Selaković、Julie P. Tran、Krishna P. Kota、Marija Lazić、Cary Retterer、Robert Besch、Rekha G. Panchal、Veronica Soloveva、Vantongreen A. Sean、Wells B. Jay、Aleksandar Pavić、Tatjana Verbić、Branka Vasiljević、Kathleen Kuehl、Allen J. Duplantier、Sina Bavari、Rajini Mudhasani、Bogdan A. Šolaja

  DOI：10.1016/j.ejmech.2018.10.061

  日期：2019.1

  Ebola virus (EBOV) causes a deadly hemorrhagic fever in humans and non-human primates. There is currently no FDA-approved vaccine or medication to counter this disease. Here, we report on the design, synthesis and anti-viral activities of two classes of compounds which show high potency against EBOV in both in vitro cell culture assays and in vivo mouse models Ebola viral disease. These compounds incorporate the structural features of cationic amphiphilic drugs (CAD), i.e they possess both a hydrophobic domain and a hydrophilic domain consisting of an ionizable amine functional group. These structural features enable easily diffusion into cells but once inside an acidic compartment their amine groups became protonated, ionized and remain trapped inside the acidic compartments such as late endosomes and lysosomes. These compounds, by virtue of their lysomotrophic functions, blocked EBOV entry. However, unlike other drugs containing a CAD moiety including chloroquine and amodiaquine, compounds reported in this study display faster kinetics of accumulation in the lysosomes, robust expansion of late endosome/lysosomes, relatively more potent suppression of lysosome fusion with other vesicular compartments and inhibition of cathepsins activities, all of which play a vital role in anti-EBOV activity. Furthermore, the diazachrysene 2 (ZSML08) that showed most potent activity against EBOV in in vitro cell culture assays also showed significant survival benefit with 100% protection in mouse models of Ebola virus disease, at a low dose of 10 mg/kg/day. Lastly, toxicity studies in vivo using zebrafish models suggest no developmental defects or toxicity associated with these compounds. Overall, these studies describe two new pharmacophores that by virtue of being potent lysosomotrophs, display potent anti-EBOV activities both in vitro and in vivo animal models of EBOV disease. (C) 2018 Elsevier Masson SAS. All rights reserved.
• Novel multifunctional organic semiconductor materials based on 4,8-substituted 1,5-naphthyridine: synthesis, single crystal structures, opto-electrical properties and quantum chemistry calculation
  作者：Kun-Yan Wang、Chen Chen、Jin-Fang Liu、Qin Wang、Jin Chang、Hong-Jun Zhu、Chong Li

  DOI：10.1039/c2ob25926e

  日期：——

  A series of 4,8-substituted 1,5-naphthyridines (1a–1h) have been successfully synthesised by a Suzuki cross-coupling between 4,8-dibromo-1,5-naphthyridine (4) and the corresponding boronic acids (2a–2h) in the presence of catalytic palladium acetate in yields of 41.4–75.8% and have ben well characterized. They are thermally robust with high phase transition temperatures (above 186 °C). Compounds 1b, 1e and 1f crystallized in the monoclinic crystal system with the space groups P21/c, P21/c and P21/n, respectively. All of them show the lowest energy absorption bands (λmaxAbs: 294–320 nm), revealing low optical band gaps (2.77–3.79 eV). These materials emit blue fluorescence with λmaxEm ranging from 434–521 nm in dilute solution in dichloromethane and 400–501 nm in the solid state. 4,8-Substituted 1,5-naphthyridines 1a–1h have estimated electron affinities (EA) of (2.38–2.72 eV) suitable for electron-transport materials and ionization potentials (IP) of 4.85–5.04 eV facilitate excellent hole-injecting/hole-transport materials properties. Quantum chemical calculations using DFT B3LYP/6-31G* showed nearly identical the lowest unoccupied molecular orbitals (LUMO) of −2.39 to −2.19 eV and the highest occupied molecular orbitals (HOMO) of −5.33 to −6.84 eV. These results demonstrate the 4,8-substituted 1,5-naphthyridines 1a–1h with a simple architecture might be promising blue-emitting (or blue-green-emitting) materials, electron-transport materials and hole-injecting/hole-transport materials for applications for developing high-efficiency OLEDs.

  一系列4,8取代的1,5-萘啶（1a–1h）已成功合成，通过4,8-二溴-1,5-萘啶（4）与相应的硼酸（2a–2h）在催化性醋酸钯的存在下进行铃木交叉偶联反应，收率为41.4%–75.8%，并得到良好表征。它们在热稳定性方面表现优异，具有高相变温度（高于186°C）。化合物1b、1e和1f分别在单斜晶系中结晶，空间群为P21/c、P21/c和P21/n。所有化合物表现出最低能量吸收带（λmaxAbs: 294–320 nm），揭示了较低的光学带隙（2.77–3.79 eV）。这些材料在二氯甲烷稀溶液中发出蓝色荧光，λmaxEm范围为434–521 nm，在固态中为400–501 nm。4,8取代的1,5-萘啶1a–1h的估计电子亲合能（EA）为2.38–2.72 eV，适合用作电子传输材料，而离子化势（IP）为4.85–5.04 eV，促进了优良的孔注入/孔传输材料特性。使用DFT B3LYP/6-31G*进行的量子化学计算显示，最低未占分子轨道（LUMO）几乎相同，范围为−2.39至−2.19 eV，最高占分子轨道（HOMO）范围为−5.33至−6.84 eV。这些结果表明，具有简单结构的4,8取代1,5-萘啶1a–1h可能是开发高效OLED的有希望的蓝色发射（或蓝绿色发射）材料、电子传输材料以及孔注入/孔传输材料。