2-ethyl-3-methoxy-4Hpyran-4-one | 50741-69-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃
• 英文名称: 2-ethyl-3-methoxy-4Hpyran-4-one
• 英文别名: 2-ethyl-3-methoxy-pyranone；2-ethyl-3-methoxypyran-4-one；2-Ethyl-3-methoxy-4H-pyran-4-one
• CAS: 50741-69-0
• 化学式: C₈H₁₀O₃
• 分子量: 154.166
• InChiKey: FKSXDOOHTFCNOF-UHFFFAOYSA-N

物化性质

• 沸点：
  290.9±35.0 °C(Predicted)
• 密度：
  1.11±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  11
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 危险性防范说明：
  P261,P280,P301+P312,P302+P352,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335
• 储存条件：
  密封于干燥常温环境

反应信息

• 作为反应物：
  描述：

  2-ethyl-3-methoxy-4Hpyran-4-one 在 sodium azide 、 copper(ll) sulfate pentahydrate 、 四溴化碳 、 三溴化硼 、 sodium ascorbate 、 三苯基膦 、 sodium hydroxide 作用下， 以 甲醇 、 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 15.0h， 生成 2-ethyl-3-hydroxy-1-[3-(4-{[(coumarin-7-yl)oxy]methyl}-1H-1,2,3-triazol-1-yl)propyl]-1,4-dihydropyridin-4-one
  参考文献：
  名称：

  Dual-target anti-Alzheimer’s disease agents with both iron ion chelating and monoamine oxidase-B inhibitory activity

  摘要：

  MAO-B leads to an increase in the levels of hydrogen peroxide and oxidative free radicals, which contribute to the aetiology of the AD. Thus, both iron ion chelators and MAO-B inhibitors can be used to treat AD. Taking the coumarin derivatives and hydroxypyridinones as the lead compounds, a series of dual-target hybrids were designed and synthesised by Click Chemistry. The compounds were biologically evaluated for their iron ion chelating and MAO-B inhibitory activity. Most of the compounds displayed excellent iron ion chelating activity and moderate to good anti-MAO-B activity. Compounds 27b and 27j exhibited the most potent MAO-B inhibitory activity, with IC50 values of 0.68 and 0.86 mu M, respectively. In summary, these dual-target compounds have the potential anti-AD activity.

  DOI：

  10.1080/14756366.2019.1634703
• 作为产物：
  描述：

  乙基麦芽酚 在 potassium hydroxide 、 sodium hydroxide 作用下， 以 甲醇 、 丙酮 为溶剂， 反应 34.0h， 生成 2-ethyl-3-methoxy-4Hpyran-4-one
  参考文献：
  名称：

  Synthesis, Antiplasmodial Activity, and β-Hematin Inhibition of Hydroxypyridone–Chloroquine Hybrids

  摘要：

  A series of noncytotoxic 4-aminoquinoline-3-hydroxypyridin-4-one hybrids were synthesized on the basis of a synergistic in vitro combination of a precursor N-alkyl-3-hydroxypyridin-4-one with chloroquine (CQ) and tested in vitro against CO resistant (K1 and W2). an sensitive (3D7) strains of Plasmodium falciparum. In vitro antiplasmodial activity of the precursors was negated by blocking the chelator moiety Via complexation with gallium(III) or benzyl protection. None of the precursors inhibited beta-hematin formation. Most hybrids were more potent inhibitors of beta-hematin formation than CQ and a correlation between antiplasmodial activity and inhibition of beta-hematin formation was observed. Potent hybrids against K1, 3D7, and W2, respectively, were 8c (0.13, 0.004, and 0.1 mu M); 8d (0.08, 0.01, and 0.02 mu M); and 7g (0.07, 0.03, and 0.08 mu M).

  DOI：

  10.1021/ml4001084

文献信息

• Identification of N-phenyl-3-methoxy-4-pyridinones as orally bioavailable H3 receptor antagonists and β-amyloid aggregation inhibitors for the treatment of Alzheimer’s disease
  作者：Minkui Zhang、Li Tang、Liu Jiang、Jun Wei、Yongzhou Hu、Rong Sheng

  DOI：10.1016/j.ejmech.2020.113096

  日期：2021.2

  functional agents for therapy of Alzheimer’s disease, through introducing alkyloxy moiety into 4-pyridinone ring to avoid the possible phase II metabolism of 3-hydroxy-4-pyridinone in lead compound 3-hydroxy-2-methyl-1-(4-(3-(pyrrolidin-1-yl)propoxy)phenyl)-pyridin-4(1H)-one (4). In vitro studies indicated that most of these compounds exhibit excellent H3 receptor antagonistic activities and potent

  根据我们以前的工作，通过将烷氧基部分引入4-吡啶酮环中以避免可能的II期，设计了一系列N-苯基-3-甲氧基-4-吡啶酮衍生物作为口服生物可利用的双重功能药物，用于治疗阿尔茨海默氏病铅化合物的3-羟基-4-吡啶酮的代谢3-羟基-2-甲基-1-（4-（3-（吡咯烷-1-基）丙氧基）苯基） -吡啶-4-（1 ħ） -酮（ 4）。体外研究表明，这些化合物大多数都具有出色的H 3受体拮抗活性和强力的自诱导Aβ1-40 / Aβ1-42聚集抑制活性。特别是，3-甲氧基-1-（4-（3-（吡咯烷基-1-基）丙氧基）苯基）-吡啶-4（1H）-一（7i）在H 3 R拮抗作用中显示IC 50值为0.52 nM。对其他组胺受体亚型具有良好的选择性。透射电子显微镜（TEM）图像显示化合物7i可有效抑制自我介导的Aβ1-40 / Aβ1-42聚集。如预期的那样，它在血浆中表现出理想的药代动力学性质和良好的BBB渗透
• 具有铁螯合和单胺氧化酶B抑制活性的香豆 素杂合吡啶酮类化合物及其制备与应用
  申请人：浙江工业大学

  公开号：CN110218207B

  公开（公告）日：2020-12-25

  本发明公开了一种如式(Ⅰ)所示的香豆素/吡啶酮杂合衍生物或其药学上可接受的盐，所述的香豆素/吡啶酮杂合衍生物的制备方法为：以式1所示的不同取代基的羟基吡喃酮为原料通过一系列合成得到式3所示的吡啶酮衍生物；以式4所示的化合物经过缩合反应得到如式5所示的化合物经一步溴代得到式6所示的化合物与式3所示的吡啶酮衍生物经过一步亲核取代反应得到如式7所示的化合物，最后脱除吡啶酮结构中的烷基保护基团得到式(I)所示的目标化合物。本发明提供的化合物是一类全新的单分子多靶点系列药物，具有铁螯合性也有靶向MAO‑B抑制活性以及抗氧化活性，对于发病机理复杂的阿尔兹海默病具有独到的优势，作用机制明确，活性优异。
• Total Syntheses and Biological Evaluation of 3-<i>O</i>-Methylfunicone and Its Derivatives Prepared by TMPZnCl·LiCl-Mediated Halogenation and Carbonylative Stille Cross-Coupling
  作者：Michael Ehrlich、Thomas Carell

  DOI：10.1002/ejoc.201201256

  日期：2013.1

  The total syntheses of the natural product 3-O-methylfunicone (1), a member of the funicone class of compounds, and its derivatives is reported. The key reactions in the construction of the biaryl ketone core are a regioselective TMPZnCl·LiCl halogenation and a carbonylative Stille cross-coupling reaction. In addition, the inhibitory activities of the funicones against Y-family DNA polymerase κ (pol

  报告了天然产物 3-O-methylfunicone (1) 的全合成，它是 funicone 类化合物的一个成员，及其衍生物。联芳基酮核构建的关键反应是区域选择性TMPZnCl·LiCl卤化和羰基化Stille交叉偶联反应。此外，还测定了锥体对 Y 家族 DNA 聚合酶 κ (pol κ) 和聚合酶 η (pol η) 的抑制活性。我们发现 1 和 12 对 pol η 表现出抑制活性，1 也对 pol κ 表现出抑制活性。
• Design, synthesis and biological evaluation of hydroxypyridinone-coumarin hybrids as multimodal monoamine oxidase B inhibitors and iron chelates against Alzheimer's disease
  作者：Changjun Zhang、Ke Yang、Sihang Yu、Jing Su、Shengli Yuan、Jiaxin Han、Yan Chen、Jinping Gu、Tao Zhou、Renren Bai、Yuanyuan Xie

  DOI：10.1016/j.ejmech.2019.07.031

  日期：2019.10

  A series of hybrids of hydroxypyridinone and coumarin were rationally designed, synthesized and biologically evaluated for their iron ion chelating and MAO-B inhibitory activities. Most of the compounds displayed excellent iron ion chelating effects and moderate to good anti-MAO-B activities. Compound 27a exhibited the most potent activity against MAO-B, with an IC50 value of 14.7 nM. Importantly, 27a showed good U251 cell protective effect and significantly ameliorated the cognitive dysfunction of scopolamine-induced AD mice. Moreover, molecular docking was performed to elucidate the probable ligand-receptor interaction, and the structure-activity relationships were also summarized. (C) 2019 Elsevier Masson SAS. All rights reserved.
• Synthesis, Antiplasmodial Activity, and β-Hematin Inhibition of Hydroxypyridone–Chloroquine Hybrids
  作者：Warren A. Andayi、Timothy J. Egan、Jiri Gut、Philip J. Rosenthal、Kelly Chibale

  DOI：10.1021/ml4001084

  日期：2013.7.11

  A series of noncytotoxic 4-aminoquinoline-3-hydroxypyridin-4-one hybrids were synthesized on the basis of a synergistic in vitro combination of a precursor N-alkyl-3-hydroxypyridin-4-one with chloroquine (CQ) and tested in vitro against CO resistant (K1 and W2). an sensitive (3D7) strains of Plasmodium falciparum. In vitro antiplasmodial activity of the precursors was negated by blocking the chelator moiety Via complexation with gallium(III) or benzyl protection. None of the precursors inhibited beta-hematin formation. Most hybrids were more potent inhibitors of beta-hematin formation than CQ and a correlation between antiplasmodial activity and inhibition of beta-hematin formation was observed. Potent hybrids against K1, 3D7, and W2, respectively, were 8c (0.13, 0.004, and 0.1 mu M); 8d (0.08, 0.01, and 0.02 mu M); and 7g (0.07, 0.03, and 0.08 mu M).