N-(2-(2-(difluoromethyl)-5-methoxy-1H-indol-3-yl)ethyl)acetamide | 1609470-75-8

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: N-(2-(2-(difluoromethyl)-5-methoxy-1H-indol-3-yl)ethyl)acetamide
• CAS: 1609470-75-8
• 化学式: C₁₄H₁₆F₂N₂O₂
• 分子量: 282.29
• InChiKey: LBKZKYDTMGTHCR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.79
• 重原子数：
  20.0
• 可旋转键数：
  5.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  54.12
• 氢给体数：
  2.0
• 氢受体数：
  2.0

反应信息

• 作为产物：
  描述：

  N-(2-(2-(5,6-dimethoxybenzo[d][1,3]dithiol-2-yl)-5-methoxy-1H-indol-3-yl)ethyl)acetamide 在 silver fluoride 作用下， 以 二氯甲烷 为溶剂， 生成 N-(2-(2-(difluoromethyl)-5-methoxy-1H-indol-3-yl)ethyl)acetamide
  参考文献：
  名称：

  Rapid ¹⁸ F‐ and ¹⁹ F‐Difluoromethylation through Desulfurative Fluorination of Transient N‐, O‐, and C‐Linked Dithioles

  摘要：

  AbstractThe difluoromethyl group plays an important role in modern medicinal and agrochemistry. While several difluoromethylation reagents have been reported, these typically rely on difluoromethyl carbenes or anions, or target specific processes. Here, we describe a conceptually unique and general process for O−H, N−H and C−H difluoromethylation that involves the formation of a transient dithiole followed by facile desulfurative fluorination using silver(I) fluoride. We also introduce the 5,6‐dimethoxy‐1,3‐benzodithiole (DMBDT) function, which undergoes sufficiently rapid desulfurative fluorination to additionally support 18F‐difluoromethylation. This new process is compatible with the wide range of functional groups typically encountered in medicinal chemistry campaigns, and the use of Ag18F is demonstrated in the production of 18F‐labeled derivatives of testosterone, perphenazine, and melatonin, 58.0±2.2, 20.4±0.3 and 32.2±3.6 MBq μmol−1, respectively. We expect that the DMBDT group and this 18F/19F‐difluoromethylation process will inspire and support new efforts in medicinal chemistry, agrochemistry and radiotracer production.

  DOI：

  10.1002/chem.202202862

文献信息

• Visible Light-Mediated C–H Difluoromethylation of Electron-Rich Heteroarenes
  作者：Yi-Ming Su、Yu Hou、Feng Yin、Yue-Ming Xu、Yan Li、Xiaoqi Zheng、Xi-Sheng Wang

  DOI：10.1021/ol501094z

  日期：2014.6.6

  A novel method for visible-light photoredox-catalyzed difluoromethylation of electron-rich N-, O-, and S-containingheteroarenes under mild reaction conditions is developed. Mechanistic investigation indicates that the net C–H difluoromethylation proceeds through an electrophilic radical-type pathway.

  提出了在温和的反应条件下，可见光光氧化还原催化富电子的N-，O-和S-杂芳烃的二氟甲基化的新方法。机理研究表明，纯净的C–H二氟甲基化过程是通过亲电子自由基类型的途径进行的。
• Direct C–H difluoromethylation of heterocycles via organic photoredox catalysis
  作者：Wei Zhang、Xin-Xin Xiang、Junyi Chen、Chen Yang、Yu-Liang Pan、Jin-Pei Cheng、Qingbin Meng、Xin Li

  DOI：10.1038/s41467-020-14494-8

  日期：——

  an organophotocatalytic direct difluoromethylation of heterocycles using O2 as a green oxidant. The C-H oxidative difluoromethylation obviates the need for pre-functionalization of the substrates, metals and additives. The operationally straightforward method enriches the efficient synthesis of many difluoromethylated heterocycles in moderate to excellent yields. The direct difluoromethylation of pharmaceutical

  现代医学的发现依赖于合成方法的可持续发展，以满足与药物分子设计相关的需求。含有二氟甲基的杂环是新兴但很少研究的一类有机氟分子，具有在制药，农业和材料科学领域的潜在应用。在这里，我们开发了使用O2作为绿色氧化剂的杂环的有机光催化直接二氟甲基化反应。CH氧化二氟甲基化消除了对底物，金属和添加剂进行预官能化的需要。该操作简单的方法以中等至优异的产率丰富了许多二氟甲基化杂环的有效合成。药物分子的直接二氟甲基化证明了该方法对后期药物开发的实用性。此外，2'-脱氧-5-二氟甲基尿苷（F2TDR）对某些癌细胞系表现出有希望的活性，表明二氟甲基化方法可能为药物发现提供帮助。