(E)-2-methoxy-1,3-dimethyl-5-styrylbenzene | 1070241-24-5

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: (E)-2-methoxy-1,3-dimethyl-5-styrylbenzene
• 英文别名: 3,5-dimethyl-4-methoxystilbene；2-methoxy-1,3-dimethyl-5-[(E)-2-phenylethenyl]benzene
• CAS: 1070241-24-5
• 化学式: C₁₇H₁₈O
• 分子量: 238.329
• InChiKey: ZOUMWVVTMPPFKN-MDZDMXLPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.9
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (E)-2-methoxy-1,3-dimethyl-5-styrylbenzene 在 三溴化硼 作用下， 以 正己烷 、 二氯甲烷 为溶剂， 反应 2.0h， 以87%的产率得到3,5-Dimethyl-4-stilbenol
  参考文献：
  名称：

  Toward Optimization of the Linker Substructure Common to Transthyretin Amyloidogenesis Inhibitors Using Biochemical and Structural Studies

  摘要：

  To develop potent and highly selective transthyretin (TTR) amyloidogenesis inhibitors, it is useful to systematically optimize the three substructural elements that compose a typical TTR kinetic stabilizer: the two aryl rings and the linker joining them. Herein, we evaluated 40 bisaryl molecules based on 10 unique linker substructures to determine how these linkages influence inhibitor potency and selectivity. These linkers connect one unsubstituted aromatic ring to either a 3,5-X 2 or a 3,5-X 2-4-OH phenyl substructure (X = Br or CH 3). Coconsideration of amyloid inhibition and ex vivo plasma TTR binding selectivity data reveal that direct connection of the two aryls or linkage through nonpolar E-olefin or -CH 2CH 2- substructures generates the most potent and selective TTR amyloidogenesis inhibitors exhibiting minimal undesirable binding to the thyroid hormone nuclear receptor or the COX-1 enzyme. Five high-resolution TTR.inhibitor crystal structures (1.4-1.8 A) provide insight into why such linkers afford inhibitors with greater potency and selectivity.

  DOI：

  10.1021/jm800435s
• 作为产物：
  描述：

  3,5-二甲基-4-甲氧基苯甲醛 、 溴甲苯 在 亚磷酸三乙酯 、 sodium hydride 作用下， 以 N,N-二甲基甲酰胺 、 mineral oil 为溶剂， 反应 21.5h， 生成 (E)-2-methoxy-1,3-dimethyl-5-styrylbenzene
  参考文献：
  名称：

  Toward Optimization of the Linker Substructure Common to Transthyretin Amyloidogenesis Inhibitors Using Biochemical and Structural Studies

  摘要：

  To develop potent and highly selective transthyretin (TTR) amyloidogenesis inhibitors, it is useful to systematically optimize the three substructural elements that compose a typical TTR kinetic stabilizer: the two aryl rings and the linker joining them. Herein, we evaluated 40 bisaryl molecules based on 10 unique linker substructures to determine how these linkages influence inhibitor potency and selectivity. These linkers connect one unsubstituted aromatic ring to either a 3,5-X 2 or a 3,5-X 2-4-OH phenyl substructure (X = Br or CH 3). Coconsideration of amyloid inhibition and ex vivo plasma TTR binding selectivity data reveal that direct connection of the two aryls or linkage through nonpolar E-olefin or -CH 2CH 2- substructures generates the most potent and selective TTR amyloidogenesis inhibitors exhibiting minimal undesirable binding to the thyroid hormone nuclear receptor or the COX-1 enzyme. Five high-resolution TTR.inhibitor crystal structures (1.4-1.8 A) provide insight into why such linkers afford inhibitors with greater potency and selectivity.

  DOI：

  10.1021/jm800435s

文献信息

• Stereospecific Iron-Catalyzed Carbon (sp²)–Carbon (sp²) Cross-Coupling of Aryllithium with Vinyl Halides
  作者：Peng Chen、Zhi-Yong Wang、Xiao-Shui Peng、Henry N.C. Wong

  DOI：10.1021/acs.orglett.1c01318

  日期：2021.6.4

  We present herein an efficient synthetic protocol involving iron-catalyzed cross-coupling of organolithium compounds with vinyl halides as key coupling partners. More than 30 examples were obtained with moderate to good yields and high stereoselectivities. The practicality of this method is evidenced by a gram-scale synthesis. In addition, a preliminary mechanistic investigation was also performed

  我们在此提出了一种有效的合成方案，涉及有机锂化合物与乙烯基卤化物作为关键偶联伙伴的铁催化交叉偶联。获得了 30 多个具有中等至良好产率和高立体选择性的实例。克级合成证明了该方法的实用性。此外，还进行了初步的机械调查。