5-甲基苯并呋喃-2-羧酸 | 10242-09-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并呋喃
• 中文名称: 5-甲基苯并呋喃-2-羧酸
• 英文名称: 5-methylbenzofuran-2-carboxylic acid
• 英文别名: 5-methyl-1-benzofuran-2-carboxylic acid
• CAS: 10242-09-8
• 化学式: C₁₀H₈O₃
• 分子量: 176.172
• InChiKey: RNTYTQILDXWFLQ-UHFFFAOYSA-N

物化性质

• 熔点：
  238-240℃
• 沸点：
  332.1±22.0 °C(Predicted)
• 密度：
  1.303

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  13
• 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：
  50.4
• 氢给体数：
  1
• 氢受体数：
  3

安全信息

• 海关编码：
  2932999099
• 危险性防范说明：
  P233,P260,P261,P264,P270,P271,P280,P301+P312,P302+P352,P304,P304+P340,P305+P351+P338,P312,P321,P330,P332+P313,P337+P313,P340,P362,P403,P403+P233,P405,P501
• 危险性描述：
  H315,H319,H335
• 储存条件：
  2-8°C，干燥保存。

反应信息

• 作为反应物：
  描述：

  5-甲基苯并呋喃-2-羧酸 在 sodium amalgam 作用下， 以 sodium hydroxide 为溶剂， 反应 2.5h， 生成 5-甲基-2,3-二氢苯并呋喃-2-羧酸
  参考文献：
  名称：

  .alpha.-Adrenoceptor reagents. 2. Effects of modification of the 1,4-benzodioxan ring system on .alpha.-adrenoreceptor activity

  摘要：

  Modification of the 1,4-benzodioxan ring present in RX 781094 has not previously been considered. This paper describes a number of analogues of this ring system, including compounds in which one of the oxygen atoms has been replaced by a methylene group and also those in which the ring size has been changed to give, for example, furan and thiophene derivatives. The dihydrobenzofuranylimidazoline compound 7 is the only analogue possessing presynaptic antagonist potency potency and selectivity comparable to that of 1. In view of this result, a number of derivatives was prepared to determine the structure-activity relationships within this series. Many derivatives, as well as the parent compound 7, were found to possess presynaptic alpha 2-adrenoreceptor antagonist and postsynaptic alpha 1-adrenoreceptor partial agonist properties. Two of the selective presynaptic antagonists, 13 and 14 possess greater potency and selectivity than that possessed by 1. The 5-chloro derivative 25 is twice as potent as after oral administration but only about half as potent when given intravenously.

  DOI：

  10.1021/jm00371a003
• 作为产物：
  描述：

  6-甲基香豆素 在 氢氧化钾 、 溴 作用下， 生成 5-甲基苯并呋喃-2-羧酸
  参考文献：
  名称：

  Synthetic Approaches to Benzofuran Containing Insulin Sensitivity Enhancer Compounds for Treatment of Type II Diabetes

  摘要：

  DOI：

  10.3987/com-97-7820

文献信息

• Novel flavors, flavor modifiers, tastants, taste enhancers, umami or sweet tastants, and/or enhancers and use thereof
  申请人：Tachdjian Catherine

  公开号：US20050084506A1

  公开（公告）日：2005-04-21

  The present invention relates to the discovery that certain non-naturally occurring, non-peptide amide compounds and amide derivatives, such as oxalamides, ureas, and acrylamides, are useful flavor or taste modifiers, such as a flavoring or flavoring agents and flavor or taste enhancer, more particularly, savory (the “umami” taste of monosodium glutamate) or sweet taste modifiers,—savory or sweet flavoring agents and savory or sweet flavor enhancers, for food, beverages, and other comestible or orally administered medicinal products or compositions.

  本发明涉及发现，某些非天然存在的非肽酰胺化合物和酰胺衍生物，如草酰胺、脲和丙烯酰胺，可用作风味或口味调节剂，例如风味或调味剂和风味或口味增强剂，更具体地说，是用于食品、饮料和其他可食用或口服药品或组合物的风味或口味调节剂，包括鲜味（味精的“鲜味”）或甜味调节剂，鲜味或甜味调味剂以及鲜味或甜味增强剂。
• Synthesis and biological evaluation of novel shikonin-benzo[b]furan derivatives as tubulin polymerization inhibitors targeting the colchicine binding site
  作者：Yu-Ying Shao、Yong Yin、Bao-Ping Lian、Jia-Fu Leng、Yuan-Zheng Xia、Ling-Yi Kong

  DOI：10.1016/j.ejmech.2020.112105

  日期：2020.3

  with the IC50 value of 0.18 μM against HT29 cells, which was significantly better than that of the reference drugs shikonin and CA-4. What's more, 6c could inhibit tubulin polymerization and compete with [3H] colchicine in binding to tubulin. Further biological studies depicted that 6c can induce cell apoptosis and cell mitochondria depolarize, regulate the expression of apoptosis related proteins in

  设计并合成了一系列新的紫草素-苯并[b]呋喃衍生物作为微管蛋白聚合抑制剂，并对其生物学活性进行了评估。大多数化合物显示出与紫草素相当的抗癌细胞增殖活性，同时对非癌细胞具有较低的细胞毒性。其中，化合物6c对HT29细胞显示出强大的抗癌活性，IC50值为0.18μM，显着优于参考药物紫草素和CA-4。而且，6c可以抑制微管蛋白聚合，并与[3H]秋水仙碱竞争与微管蛋白的结合。进一步的生物学研究表明6c可以诱导细胞凋亡并使细胞线粒体去极化，调节HT29细胞中凋亡相关蛋白的表达。除了，6c激活了HT29细胞在G2 / M期的细胞周期停滞，并影响了细胞周期相关蛋白的表达。此外，6c显示出对细胞迁移和管形成的有效抑制，这有助于抗血管生成。这些结果促使我们将6c视为潜在的微管蛋白聚合抑制剂，值得进一步研究。
• Catalytic Asymmetric Dearomatization by Visible‐Light‐Activated [2+2] Photocycloaddition
  作者：Naifu Hu、Hoimin Jung、Yu Zheng、Juhyeong Lee、Lilu Zhang、Zakir Ullah、Xiulan Xie、Klaus Harms、Mu‐Hyun Baik、Eric Meggers

  DOI：10.1002/anie.201802891

  日期：2018.5.22

  the catalytic asymmetric dearomatization by visible‐light‐activated [2+2] photocycloaddition with benzofurans and one example of a benzothiophene is reported, thereby providing chiral tricyclic structures with up to four stereocenters including quaternary stereocenters. The benzofurans and the benzothiophene are functionalized at the 2‐position with a chelating N‐acylpyrazole moiety which permits the

  报道了一种通过可见光活化的[2 + 2]光环加成与苯并呋喃和一个苯并噻吩实例进行催化不对称脱芳香化反应的新方法，从而提供了具有四个立体中心（包括四级立体中心）的手性三环结构。苯并呋喃和苯并噻吩在2位被N-酰基吡唑螯合部分官能化，从而允许可见光活化的手性铑路易斯手性酸催化剂的配位。计算分子模型揭示了异常区域选择性的起源，并确定了杂环中的杂原子是区域控制的关键。
• Benzofuran Derivatives. I. On the Effects of Substituents in Benzofuran Syntheses
  作者：Tsuneo Suzuki、Takaaki Horaguchi、Takahachi Shimizu、Teishiro Abe

  DOI：10.1246/bcsj.56.2762

  日期：1983.9

  of 4-substituted 2-acylphenoxyacetic acids give a mixture of benzofurans and 2-benzofurancarboxylic acids. The relative yields of benzofurans and 2-benzofurancarboxylic acids depend on the substituents on the benzene ring of the 2-acylphenoxyacetic acids. Electron-withdrawing substituents such as nitro groups favor the formation of 2-benzofurancarboxylic acids. On the other hand, the formation of benzofurans

  4-取代的2-酰基苯氧基乙酸的Rossing反应得到苯并呋喃和2-苯并呋喃甲酸的混合物。苯并呋喃和 2-苯并呋喃甲酸的相对产率取决于 2-酰基苯氧乙酸苯环上的取代基。吸电子取代基如硝基有利于形成 2-苯并呋喃甲酸。另一方面，在 2-酰基-4-硝基苯氧乙酸与无水乙酸钠和乙酸酐的反应中，2-酰基的空间位阻有利于苯并呋喃的形成。
• Modulation on C- and N-Terminal Moieties of a Series of Potent and Selective Linear Tachykinin NK₂Receptor Antagonists
  作者：Martina Gensini、Maria Altamura、Tula Dimoulas、Valentina Fedi、Danilo Giannotti、Sandro Giuliani、Antonio Guidi、Nicholas J. S. Harmat、Stefania Meini、Rossano Nannicini、Franco Pasqui、Manuela Tramontana、Antonio Triolo、Carlo Alberto Maggi

  DOI：10.1002/cmdc.200900389

  日期：2010.1.4

  Herein we describe the synthesis of a series of new potent tachykinin NK2 receptor antagonists by the modulation of the C‐ and N‐terminal moieties of ibodutant (MEN 15596, 1). The N‐terminal benzo[b]thiophene ring was replaced by different substituted naphthalenes and benzofurans, while further modifications were evaluated at the C‐terminal tetrahydropyran moiety. Most compounds demonstrated a high affinity

  本文中，我们描述了一系列新的有效速激肽NK的合成2通过ibodutant的C-和N-末端部分的调制（MEN 15596，受体拮抗剂1）。N末端的苯并[ b ]噻吩环被不同的取代萘和苯并呋喃取代，同时在C末端的四氢吡喃部分评估了进一步的修饰。大多数化合物表现出对人NK 2受体的高亲和力和体外拮抗剂的高效力，表明可以在分子的两个末端引入广泛的取代基，而不会影响与NK 2受体的相互作用。对选定的化合物进行了体内测试，证实了其作为NK的活性2个拮抗剂。特别是，对豚鼠静脉内和静脉内给药后，化合物61b能够拮抗NK 2诱导的结肠收缩，其作用力和作用持续时间与参考化合物1（MEN 15596，ibodutant）完全相同。