3-hydroxy-8-methoxycoumarin | 33265-15-5

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 香豆素及其衍生物
• 英文名称: 3-hydroxy-8-methoxycoumarin
• 英文别名: 3-Hydroxy-8-methoxychromen-2-one
• CAS: 33265-15-5
• 化学式: C₁₀H₈O₄
• 分子量: 192.171
• InChiKey: DJOUSMMTXZYXMV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  55.8
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  3-hydroxy-8-methoxycoumarin 在 palladium diacetate 、 三苯基膦 吡啶 、 甲酸 、 三乙胺 作用下， 以 二氯甲烷 、 氯仿 、 N,N-二甲基甲酰胺 为溶剂， 反应 32.0h， 生成 8-methoxy-4-(4-methoxyphenyl)-2H-chromen-2-one
  参考文献：
  名称：

  Donnelly, Dervilla M. X.; Finet, Jean-Pierre; Guiry, Patrick J., Journal of the Chemical Society. Perkin transactions I, 1990, # 10, p. 2851 - 2852

  摘要：

  DOI：
• 作为产物：
  描述：

  8-methoxy-3-aminocoumarin 在 盐酸 作用下， 生成 3-hydroxy-8-methoxycoumarin
  参考文献：
  名称：

  Pavé, Grégoire; Chalard, Pierre; Viaud-Massuard, Marie-Claude, Synlett, 2003, # 7, p. 987 - 990

  摘要：

  DOI：

文献信息

• A novel class of human 15-LOX-1 inhibitors based on 3-hydroxycoumarin
  作者：Seyed Jamal Alavi、Hamid Sadeghian、Seyed Mohammad Seyedi、Alireza Salimi、Hossein Eshghi

  DOI：10.1111/cbdd.13174

  日期：2018.6

  Owing to the importance of these enzymes, mechanistic studies, product analysis, and synthesis of inhibitors have expanded. In this study, a series of hydroxycoumarins, methoxy‐3‐hydroxy coumarins, and 7‐alkoxy‐3‐hydroxy coumarins were synthesized and evaluated as potential inhibitors of human 15‐LOX‐1. Among the synthetic coumarins, 7‐methoxy‐3‐hydroxycoumarin derivative demonstrated potent inhibitory

  哺乳动物的炎症，敏感性和某些癌症与脂氧合酶的活性密切相关。由于这些酶的重要性，机理研究，产物分析和抑制剂的合成得到了扩展。在这项研究中，合成了一系列羟基香豆素，甲氧基-3-羟基香豆素和7-烷氧基-3-羟基香豆素，并将其评估为人类15-LOX-1的潜在抑制剂。在合成香豆素中，7-甲氧基-3-羟基香豆素衍生物显示出有效的抑制活性，化合物5f显示出最佳的抑制效果。自由基清除评估，IC 50，HNMR和DPPH漂白结果表明，电子性能是合成香豆素抑制脂加氧酶效能的主要因素。根据理论研究，有人提出苯环第七位取代基的介观效应是氧自由基中间体稳定性的主要因素之一。
• Novel Coupled Molecules from Active Structural Motifs of Synthetic and Natural Origin as Immunosuppressants
  作者：Richa Minhas、Gulshan Bansal、Yogita Bansal

  DOI：10.2174/1573406415666190409111459

  日期：2020.5.20

  Nitric oxide (NO) is an important mediator in the pathogenesis and control of immune system-related disorders and its levels are modulated by inducible NO synthase (iNOS). Oxidative stress is another pathological indication in majority of autoimmune disorders. The present study aims at the development of coupled molecules via selection of pharmacophores for both immunomodulatory and antioxidant activities through iNOS inhibition.

  Variedly substituted coumarin moieties are coupled with naturally occurring phenols through an amide linkage and were predicted for activities using computer-based program PASS. The compounds predicted to have dual activities were synthesized. Docking studies were carried out against iNOS (PDB 1R35) and compounds having good docking score were evaluated for immunomodulatory and antioxidant activities.

  The synthesized compounds were found to be pure and were obtained in good yields. Compounds with maximum docking score (YR1a, YR2e, YR2c and YR4e) were selected for evaluation by in vitro models. Compounds YR2e and YR2c markedly inhibited the reduction of NBT dye and showed maximum % iNOS inhibition. In DPPH assay, compound YR4e was observed as the most potent antioxidant (EC50 0.33 µM/mL). Based on these studies, compounds YR2e and YR2c were selected for haemagglutination test. Compound YR2e was observed as the most active immunosuppressant with maximal inhibitory ability of iNOS and NBT reduction and lower HAT value of 3.5.

  Compound YR2e can be utilized as a pharmacological agent in the prevention or treatment of immunomodulatory diseases such as tumors, rheumatoid arthritis, ulcerative colitis, organ transplant and other autoimmune disorders.

  介绍：一氧化氮（NO）是免疫系统相关疾病发病和控制的重要介质，其水平受诱导型NO合酶（iNOS）调节。氧化应激是大多数自身免疫性疾病的另一个病理指标。本研究旨在通过选择对免疫调节和抗氧化活性均具有药效团的耦合分子的开发，通过iNOS抑制来实现。 方法：通过酰胺键将不同取代的香豆素基团与天然存在的酚偶联，并使用基于计算机的程序PASS预测其活性。合成了预测具有双重活性的化合物。进行了针对iNOS（PDB 1R35）的对接研究，评估了对接分数较高的化合物的免疫调节和抗氧化活性。 结果：合成的化合物纯度高，产率良好。具有最高对接得分（YR1a、YR2e、YR2c和YR4e）的化合物被选中用于体外模型评估。化合物YR2e和YR2c明显抑制了NBT染料的还原，并显示出最大的iNOS抑制率。在DPPH测定中，化合物YR4e被观察为最有效的抗氧化剂（EC50为0.33 μM/mL）。基于这些研究，化合物YR2e和YR2c被选择用于血凝试验。化合物YR2e被观察为最活跃的免疫抑制剂，具有最大的iNOS和NBT还原抑制能力，HAT值为3.5。 结论：化合物YR2e可以作为药理学试剂用于预防或治疗肿瘤、类风湿性关节炎、溃疡性结肠炎、器官移植和其他自身免疫性疾病。
• [(4-Oxo-4H-1-benzopyran-3-yl)oxy] acetic acids and derivatives
  申请人：Warner-Lambert Company

  公开号：US04127669A1

  公开（公告）日：1978-11-28

  Compounds of formula I: ##STR1## wherein Y is hydrogen, lower alkyl, halogen or lower alkoxy; X is carboxy, alkoxycarbonyl, carboxamide, cyano or tetrazolo, and their non-toxic, pharmaceutically acceptable salts are disclosed. These compounds are useful in the prevention of allergic and asthmatic reactions.

  公式I的化合物：##STR1## 其中Y是氢、低碳基、卤素或低烷氧基；X是羧基、烷氧羰基、羧酰胺基、氰基或四唑基，以及它们的非毒性、药用可接受的盐已被披露。这些化合物在预防过敏和哮喘反应方面很有用。
• Reaction of aryl-2-hydroxypropenoic derivatives with boron tribromide
  作者：Romain Dupont、Philippe Cotelle

  DOI：10.1016/s0040-4039(00)02011-6

  日期：2001.1

  trimethoxyphenyl-2-hydroxypropenoic acids 1a–d gave mixtures of (E) and (Z) mono, di or trihydroxyphenyl-2-hydroxypropenoic acids 2a–d when treated with boron tribromide. The isomerisation proceeds during the work-up and depends on the duration of the hydrolysis and the number of oxygens on the aromatic ring. When the aromatic ring was substituted with a methoxy group at the ortho position, a cyclisation occurs

  （Ž） -单，二或三甲氧基苯基-2- hydroxypropenoic酸1A-d得到（的混合物ë）和（Ž）单，二或三羟基苯基-2- hydroxypropenoic酸图2a-d时用三溴化硼。异构化在后处理过程中进行，并取决于水解的持续时间和芳环上的氧数。当芳环在邻位被甲氧基取代时，发生环化，并且可以获得3-羟基香豆素3和苯并呋喃-2-羧酸4。3-羟基香豆素3a 3-（2-甲氧基苯基）-2，3-环氧丙酸甲酯与三溴化硼的反应也几乎可以定量获得。
• Shah, R. R.; Trivedi, K. N., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1981, vol. 20, # 3, p. 210 - 212
  作者：Shah, R. R.、Trivedi, K. N.

  DOI：——

  日期：——