dipavaloyl 6-aminofluorescein | 321859-04-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: dipavaloyl 6-aminofluorescein
• 英文别名: [6-Amino-6'-(2,2-dimethylpropanoyloxy)-3-oxospiro[2-benzofuran-1,9'-xanthene]-3'-yl] 2,2-dimethylpropanoate
• CAS: 321859-04-5
• 化学式: C₃₀H₂₉NO₇
• 分子量: 515.563
• InChiKey: XDZVRFLEWTYJBQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.8
• 重原子数：
  38
• 可旋转键数：
  6
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  114
• 氢给体数：
  1
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  dipavaloyl 6-aminofluorescein 、 3,4-二硝基苯甲酸 在 氯化亚砜 、 N,N-二甲基甲酰胺 、 N,N-二异丙基乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 2.5h， 生成
  参考文献：
  名称：

  Design and Synthesis of Highly Sensitive Fluorogenic Substrates for Glutathione S-Transferase and Application for Activity Imaging in Living Cells

  摘要：

  Here we report the development of fluorogenic substrates for glutathione S-transferase (GST), a multigene-family enzyme mainly involved in detoxification of endogenous and exogenous compounds, including drug metabolism. GST is often overexpressed in a variety of malignancies and is involved in the development of resistance to various anticancer drugs. Despite the medical significance of this enzyme, no practical fluorogenic substrates for fluorescence imaging of GST activity or for high-throughput screening of GST inhibitors are yet available. So, we set out to develop new fluorogenic substrates for GST. In preliminary studies, we found that 3,4-dinitrobenzanilide (NNBA) is a specific substrate for GST and established the mechanisms of its glutathionylation and denitration. Using these results as a basis for off/on control of fluorescence, we designed and synthesized new fluorogenic substrates, DNAFs, and a cell membrane-permeable variant, DNAT-Me. These fluorogenic substrates provide a dramatic fluorescence increase upon GST-catalyzed glutathionylation and have excellent kinetic parameters for the present purpose. We were able to detect nuclear localization of GSH/GST activity in HuCCT1 cell lines with the use of DNAT-Me. These results indicate that the newly developed fluorogenic substrates should be useful not only for high-throughput GST-inhibitor screening but also for studies on the mechanisms of drug resistance in cancer cells.

  DOI：

  10.1021/ja802423n

文献信息

• US7696245B2
  申请人：——

  公开号：US7696245B2

  公开（公告）日：2010-04-13
• USRE40572E1
  申请人：——

  公开号：USRE40572E1

  公开（公告）日：2008-11-11