(E)-2-[2-(pyridin-3-yl)ethenyl]-1,3-dioxolane | 1291078-55-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: (E)-2-[2-(pyridin-3-yl)ethenyl]-1,3-dioxolane
• 英文别名: 3-[(E)-2-(1,3-dioxolan-2-yl)ethenyl]pyridine
• CAS: 1291078-55-1
• 化学式: C₁₀H₁₁NO₂
• 分子量: 177.203
• InChiKey: FHGVWVJSAFEIMH-ONEGZZNKSA-N

物化性质

• 沸点：
  283.9±30.0 °C(Predicted)
• 密度：
  1.246±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  31.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (E)-2-[2-(pyridin-3-yl)ethenyl]-1,3-dioxolane 在 盐酸 作用下， 以 四氢呋喃 、 水 为溶剂， 以565 mg的产率得到3-(3-吡啶基)丙烯醛
  参考文献：
  名称：

  Structure–Activity Relationship Study of Heterocyclic Phenylethenyl and Pyridinylethenyl Derivatives as Tau-Imaging Agents That Selectively Detect Neurofibrillary Tangles in Alzheimer’s Disease Brains

  摘要：

  In order to explore novel tau-imaging agents that can selectively detect neurofibrillary tangles in Alzheimer's disease (AD) brains, we designed and synthesized a series of heterocyclic phenylethenyl and (3-pyridinyl)ethenyl derivatives with or without a dimethyl amino group. In in vitro autoradiography using AD brain sections, all radioiodinated ligands with a dimethyl amino group bound to A beta deposits in the sections. In contrast, the ligands without a dimethyl amino group showed different patterns of radioactivity accumulation in the sections depending on the kind of heterocycle contained in their molecules. Particularly, a phenylethenyl benzimidazole derivative ([I-125]64) showed marked radioactivity accumulation in the temporal lobe which corresponded with the distribution of tau deposits. [I-125]64 also showed the most favorable pharmacokinetics in normal mouse brains (3.69 and 0.06% ID/g at 2 and 60 min postinjection, respectively) among all ligands in this study. Taken together, these results suggest that [I-123]64 may be a new candidate tau-imaging agent.

  DOI：

  10.1021/acs.jmedchem.5b00440
• 作为产物：
  描述：

  3-吡啶甲醛 、 (1,3-二氧戊环-2-基)甲基三苯基溴化瞵 在 18-冠醚-6 、 sodium hydride 作用下， 以 四氢呋喃 为溶剂， 生成 (E)-2-[2-(pyridin-3-yl)ethenyl]-1,3-dioxolane
  参考文献：
  名称：

  Structure–Activity Relationship Study of Heterocyclic Phenylethenyl and Pyridinylethenyl Derivatives as Tau-Imaging Agents That Selectively Detect Neurofibrillary Tangles in Alzheimer’s Disease Brains

  摘要：

  In order to explore novel tau-imaging agents that can selectively detect neurofibrillary tangles in Alzheimer's disease (AD) brains, we designed and synthesized a series of heterocyclic phenylethenyl and (3-pyridinyl)ethenyl derivatives with or without a dimethyl amino group. In in vitro autoradiography using AD brain sections, all radioiodinated ligands with a dimethyl amino group bound to A beta deposits in the sections. In contrast, the ligands without a dimethyl amino group showed different patterns of radioactivity accumulation in the sections depending on the kind of heterocycle contained in their molecules. Particularly, a phenylethenyl benzimidazole derivative ([I-125]64) showed marked radioactivity accumulation in the temporal lobe which corresponded with the distribution of tau deposits. [I-125]64 also showed the most favorable pharmacokinetics in normal mouse brains (3.69 and 0.06% ID/g at 2 and 60 min postinjection, respectively) among all ligands in this study. Taken together, these results suggest that [I-123]64 may be a new candidate tau-imaging agent.

  DOI：

  10.1021/acs.jmedchem.5b00440

文献信息

• Ligand-Promoted C-3 Selective C–H Olefination of Pyridines with Pd Catalysts
  作者：Mengchun Ye、Guo-Lin Gao、Jin-Quan Yu

  DOI：10.1021/ja2021075

  日期：2011.5.11

  Pd-catalyzed C-3 selective olefination of pyridines is developed for the first time using 1,10-phenanthroline as the ligand. This finding provides a novel disconnection for the synthesis of pyridine-containing alkaloids and drug molecules as well as a new approach for developing Pd-catalyzed C H functionalizations of pyridines.
• Structure–Activity Relationship Study of Heterocyclic Phenylethenyl and Pyridinylethenyl Derivatives as Tau-Imaging Agents That Selectively Detect Neurofibrillary Tangles in Alzheimer’s Disease Brains
  作者：Kenji Matsumura、Masahiro Ono、Ayane Kitada、Hiroyuki Watanabe、Masashi Yoshimura、Shimpei Iikuni、Hiroyuki Kimura、Yoko Okamoto、Masafumi Ihara、Hideo Saji

  DOI：10.1021/acs.jmedchem.5b00440

  日期：2015.9.24

  In order to explore novel tau-imaging agents that can selectively detect neurofibrillary tangles in Alzheimer's disease (AD) brains, we designed and synthesized a series of heterocyclic phenylethenyl and (3-pyridinyl)ethenyl derivatives with or without a dimethyl amino group. In in vitro autoradiography using AD brain sections, all radioiodinated ligands with a dimethyl amino group bound to A beta deposits in the sections. In contrast, the ligands without a dimethyl amino group showed different patterns of radioactivity accumulation in the sections depending on the kind of heterocycle contained in their molecules. Particularly, a phenylethenyl benzimidazole derivative ([I-125]64) showed marked radioactivity accumulation in the temporal lobe which corresponded with the distribution of tau deposits. [I-125]64 also showed the most favorable pharmacokinetics in normal mouse brains (3.69 and 0.06% ID/g at 2 and 60 min postinjection, respectively) among all ligands in this study. Taken together, these results suggest that [I-123]64 may be a new candidate tau-imaging agent.