7-hydroxy-2-oxo-N-(2-(diphenylphosphino)ethyl)-2H-chromene-3-carboxamide

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 香豆素及其衍生物
• 英文名称: 7-hydroxy-2-oxo-N-(2-(diphenylphosphino)ethyl)-2H-chromene-3-carboxamide
• 英文别名: 7-hydroxy-2-oxo-N-(2-(diphenylphosphino) ethyl)-2 h-chromene-3-carboxamide；N-(2-diphenylphosphanylethyl)-7-hydroxy-2-oxochromene-3-carboxamide
• 化学式: C₂₄H₂₀NO₄P
• 分子量: 417.401
• InChiKey: BLJNSJYXTKYKMZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.4
• 重原子数：
  30
• 可旋转键数：
  6
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  75.6
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  2-(二苯基膦基)乙胺 、 伞形酮-3-羧酸-N-琥珀酰亚胺酯 以 N,N-二甲基甲酰胺 为溶剂， 反应 3.0h， 以28%的产率得到7-hydroxy-2-oxo-N-(2-(diphenylphosphino)ethyl)-2H-chromene-3-carboxamide
  参考文献：
  名称：

  Design and development of a fluorescent probe for monitoring hydrogen peroxide using photoinduced electron transfer

  摘要：

  A novel fluorescent probe, 7-hydroxy-2-oxo-N-(2-(diphenylphosphino)ethyl)-2H-chromene-3-carboxamide (DPPEA-HC) was developed for use in monitoring hydrogen peroxide (H2O2) production. DPPEA-HC, which consists of a diphenylphosphine moiety and a 7-hydroxycoumarin moiety, reacts with H2O2 to form DPPEA-HC oxide, which is analogous to the reaction of triphenylphosphine with hydroperoxides such as H2O2 to form triphenylphosphine oxide. Photoinduced electron transfer (PET) was applied in the design of DPPEA-HC. Since the diphenylphosphine moiety and the 7-hydroxycoumarin moiety would act as the PET donor and the acceptor, respectively, it would be expected that DPPEA-HC would rationally cancel the PET process via the formation of DPPEA-HC oxide, based on the calculated energy levels of the donor and the acceptor moieties using the B3LYP/6-31G*//AM1 method. The fluorescence intensity of DPPEA-HC increased on the addition of a H2O2 solution in 100 mM sodium phosphate buffer (pH7.4), as predicted from the energy level calculation and a good correlation between increase in the fluorescence of DPPEA-HC and the concentration of H2O2 was observed. DPPEA-HC was also fluoresced by H2O2, which was enzymatically produced in xanthine/xanthine oxidase/superoxide dismutase (XA/XOD/SOD) system. The increase in the fluorescence of DPPEA-HC in the presence of H2O2 immediately ceased on the addition of catalase (CAT), which catalyzes the disproportionation of H2O2. In addition, DPPEA-HC was found to have a much higher selectivity for H2O2 and a greater resistance to autoxidation than 2',7'-dichlorodihydrofluoresein (DCFH). Time-resolved fluorescence measurements of DPPEA-HC and DPPEA-HC oxide confirmed that the fluorescence off/on switching mechanism of DPPEA-HC is based on the PET on/off control. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2004.11.023

文献信息

• PROFILING REACTIVE OXYGEN, NITROGEN AND HALOGEN SPECIES
  申请人：ENZO LIFE SCIENCES, INC., C/O ENZO BIOCHEM, INC

  公开号：US20170122954A1

  公开（公告）日：2017-05-04

  Provided are methods, kits and systems for simultaneously profiling of global reactive species and selected reactive species, such as global and specific reactive oxygen species (ROS), reactive nitrogen species (RNS), reactive halogen species (RHS) or combinations thereof through multiplexed fluorescence detection of three or more compatible indicator probes in live cells or subcellular organelles.