| 1275613-87-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• CAS: 1275613-87-0
• 化学式: C₃₁H₃₄N₄O₆
• 分子量: 558.634
• InChiKey: JZBHWNFUJLXDFO-VWLOTQADSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.98
• 重原子数：
  41.0
• 可旋转键数：
  10.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  151.94
• 氢给体数：
  3.0
• 氢受体数：
  7.0

反应信息

• 作为反应物：
  描述：

  1,3,3-trimethyl-5-(3-(N-succinimidyloxycarbonyl)propyl)spiro[indoline-2,3'-[3H]naphtho[2,1-b][1,4]oxazine] 、 在 三乙胺 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 以42%的产率得到5-(((1S)-1-carboxy-5-(4-(1,3,3-trimethylspiro[indoline-2,3'-naphtho[2,1-b][1,4]oxazin]-5-yl)butanamido)pentyl)carbamoyl)-2-(6-(dimethylamino)-3-(dimethyliminio)-3H-xanthen-9-yl)benzoate
  参考文献：
  名称：

  Rational design, synthesis, and characterization of highly fluorescent optical switches for high-contrast optical lock-in detection (OLID) imaging microscopy in living cells

  摘要：

  control of cellular processes. These studies require microscope imaging techniques and associated optical probes that provide high-contrast and high-resolution images of specific proteins and their complexes. Auto-fluorescence however, can severely compromise image contrast and represents a fundamental limitation for imaging proteins within living cells. We have previously shown that optical switch probes and optical lock-in detection (OLID) image microscopy improve image contrast in high background environments. Here, we present the design, synthesis, and characterization of amino-reactive and cell permeable optical switches that integrate the highly fluorescent fluorophore, tetramethylrhodamine (TMR) and spironaphthoxazine (NISO), a highly efficient optical switch. The NISO moiety in TMR-NISO undergoes rapid and reversible, excited-state driven transitions between a colorless Spiro (SP)-state and a colored merocyanine (MC)-state in response to irradiation with 365 and >530 nm light. In the MC-state, the TMR (donor) emission is almost completely extinguished by Forster resonance energy transfer (FRET) to the MC probe (acceptor), whereas in the colorless SP-state, the quantum yield for TMR fluorescence is maximal. Irradiation of TMR-NISO with a defined sequence of 365 and 546 nm manipulates the levels of SP and MC with concomitant modulation of FRET efficiency and the TMR fluorescence signal. High fidelity optical switching of TMR fluorescence is shown for TMR-NISO probes in vitro and for membrane permeable TMR-NISO within living cells. (C) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2010.07.015