| 1402266-99-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• CAS: 1402266-99-2
• 化学式: C₃₀H₂₅F₂N₃O₇
• 分子量: 577.541
• InChiKey: CBCZSBXYGJQUPA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.15
• 重原子数：
  42.0
• 可旋转键数：
  6.0
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  136.91
• 氢给体数：
  2.0
• 氢受体数：
  9.0

反应信息

• 作为产物：
  描述：

  2,2',4,4'-四羟基二苯甲酮 在 盐酸 、 叔丁基锂 、 sodium nitrite 作用下， 以 四氢呋喃 、 甲醇 、 水 、 乙腈 、 正戊烷 为溶剂， 反应 77.5h， 生成
  参考文献：
  名称：

  Fluorogenic Azidofluoresceins for Biological Imaging

  摘要：

  Fluorogenic probes activated by bioorthogonal chemical reactions can enable biomolecule imaging in situations where it is not possible to wash away unbound probe. One challenge for the development of such probes is the a priori identification of structures that will undergo a dramatic fluorescence enhancement by virtue of the chemical transformation. With the aid of density functional theory calculations reported previously by Nagano and co-workers, we identified azidofluorescein derivatives that were predicted to undergo an increase in fluorescence quantum yield upon Cu-catalyzed or Cu-free cycloaddition with linear or cyclic alkynes, respectively. Four derivatives were experimentally verified in model reactions, and one, a 4-azidonaphthylfluorescein analogue, was further shown to label alkyne-functionalized proteins in vitro and glycoproteins on cells with excellent selectivity. The azidofluorescein derivative also enabled cell imaging under no-wash conditions with good signal above background. This work establishes a platform for the rational design of fluorogenic azide probes with spectral properties tailored for biological imaging.

  DOI：

  10.1021/ja308203h