2-[2-[2-[4-[2-(4-Aminophenyl)ethynyl]phenoxy]ethoxy]ethoxy]ethanol | 937701-41-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-[2-[2-[4-[2-(4-Aminophenyl)ethynyl]phenoxy]ethoxy]ethoxy]ethanol
• CAS: 937701-41-2
• 化学式: C₂₀H₂₃NO₄
• 分子量: 341.407
• InChiKey: LYZYLYXIXRTVLV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  25
• 可旋转键数：
  11
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  73.9
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  2-[2-[2-[4-[2-(4-Aminophenyl)ethynyl]phenoxy]ethoxy]ethoxy]ethanol 、 聚合甲醛 在 sodium methylate 、 sodium tetrahydroborate 作用下， 以 甲醇 为溶剂， 反应 3.0h， 以92%的产率得到2-[2-[2-[4-[2-[4-(Methylamino)phenyl]ethynyl]phenoxy]ethoxy]ethoxy]ethanol
  参考文献：
  名称：

  New Diphenylacetylenes as Probes for Positron Emission Tomographic Imaging of Amyloid Plaques

  摘要：

  A series of F-18 fluoropegylated diphenylacetylenes as probes for binding to A beta plaques were successfully prepared. These relatively rigid acetylenes, 12a, 12b, 14a, and 14b, displayed high binding affinities in postmortem AD brain homogenates (K-i ranging from 1.2 to 2.9 nM). In vivo biodistribution in normal mice exhibited excellent initial brain penetrations (4.42, 4.55, 5.41, and 6.78% dose/g at 2 min for [F-18]12a, 12b, 14a, and 14b, respectively). [F-18]12b and [F-18]14b, with a longer fluoropegylated unit, that is, n = 3, showed faster brain washout at 30 min postinjection (0.42 and 1.57% dose/g) as compared to the shorter fluoropegylated chain ligands, that is, [F-18]12a and [F-18]14a(1.03 and 3.69% dose/g). Autoradiography and homogenate binding confirmed the high binding signal due to A beta plaques. These preliminary results suggest that the novel diphenylacetylenes may be potentially useful for imaging of A beta plaques in the brain of patients with Alzheimer's disease.

  DOI：

  10.1021/jm070090j
• 作为产物：
  描述：

  2-氯乙氧基-2-乙氧基二乙醇 在 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide ammonium hydroxide 、 caesium carbonate 、 sodium iodide 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 为溶剂， 反应 20.0h， 生成 2-[2-[2-[4-[2-(4-Aminophenyl)ethynyl]phenoxy]ethoxy]ethoxy]ethanol
  参考文献：
  名称：

  New Diphenylacetylenes as Probes for Positron Emission Tomographic Imaging of Amyloid Plaques

  摘要：

  A series of F-18 fluoropegylated diphenylacetylenes as probes for binding to A beta plaques were successfully prepared. These relatively rigid acetylenes, 12a, 12b, 14a, and 14b, displayed high binding affinities in postmortem AD brain homogenates (K-i ranging from 1.2 to 2.9 nM). In vivo biodistribution in normal mice exhibited excellent initial brain penetrations (4.42, 4.55, 5.41, and 6.78% dose/g at 2 min for [F-18]12a, 12b, 14a, and 14b, respectively). [F-18]12b and [F-18]14b, with a longer fluoropegylated unit, that is, n = 3, showed faster brain washout at 30 min postinjection (0.42 and 1.57% dose/g) as compared to the shorter fluoropegylated chain ligands, that is, [F-18]12a and [F-18]14a(1.03 and 3.69% dose/g). Autoradiography and homogenate binding confirmed the high binding signal due to A beta plaques. These preliminary results suggest that the novel diphenylacetylenes may be potentially useful for imaging of A beta plaques in the brain of patients with Alzheimer's disease.

  DOI：

  10.1021/jm070090j

文献信息

• New Diphenylacetylenes as Probes for Positron Emission Tomographic Imaging of Amyloid Plaques
  作者：Rajesh Chandra、Shunichi Oya、Mei-Ping Kung、Catherine Hou、Lee-Way Jin、Hank F. Kung

  DOI：10.1021/jm070090j

  日期：2007.5.1

  A series of F-18 fluoropegylated diphenylacetylenes as probes for binding to A beta plaques were successfully prepared. These relatively rigid acetylenes, 12a, 12b, 14a, and 14b, displayed high binding affinities in postmortem AD brain homogenates (K-i ranging from 1.2 to 2.9 nM). In vivo biodistribution in normal mice exhibited excellent initial brain penetrations (4.42, 4.55, 5.41, and 6.78% dose/g at 2 min for [F-18]12a, 12b, 14a, and 14b, respectively). [F-18]12b and [F-18]14b, with a longer fluoropegylated unit, that is, n = 3, showed faster brain washout at 30 min postinjection (0.42 and 1.57% dose/g) as compared to the shorter fluoropegylated chain ligands, that is, [F-18]12a and [F-18]14a(1.03 and 3.69% dose/g). Autoradiography and homogenate binding confirmed the high binding signal due to A beta plaques. These preliminary results suggest that the novel diphenylacetylenes may be potentially useful for imaging of A beta plaques in the brain of patients with Alzheimer's disease.