methyl 12-(3H-phenoxazin-3-one-7-yloxy)dodecanoate | 323578-29-6

• 分子结构分类: 有机化合物 - 有机杂环化合物
• 英文名称: methyl 12-(3H-phenoxazin-3-one-7-yloxy)dodecanoate
• CAS: 323578-29-6
• 化学式: C₂₅H₃₁NO₅
• 分子量: 425.525
• InChiKey: KQJRTVVBIUZBKU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.75
• 重原子数：
  31.0
• 可旋转键数：
  13.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.48
• 拓扑面积：
  78.63
• 氢给体数：
  0.0
• 氢受体数：
  6.0

反应信息

• 作为反应物：
  描述：

  methyl 12-(3H-phenoxazin-3-one-7-yloxy)dodecanoate 在 Candida antarctica lipase B 作用下， 以 aq. phosphate buffer 、 丙酮 为溶剂， 反应 48.0h， 以88%的产率得到12-(3H-phenoxazin-3-one-7-yloxy)dodecanoic acid
  参考文献：
  名称：

  Evaluation of coumarin-based fluorogenic P450 BM3 substrates and prospects for competitive inhibition screenings

  摘要：

  Fluorescence-based assays for the cytochrome P450 BM3 monooxygenase from Bacillus megaterium address an attractive biotechnological challenge by facilitating enzyme engineering and the identification of potential substrates of this highly promising biocatalyst. In the current study, we used the scarcity of corresponding screening systems as an opportunity to evaluate a novel and continuous high-throughput assay for this unique enzyme. A set of nine catalytically diverse P450 BM3 variants was constructed and tested toward the native substrate-inspired fluorogenic substrate 12-(4-trifluoromethylcoumarin-7-yloxy)dodecanoic acid. Particularly high enzyme-mediated 0-dealkylation yielding the fluorescent product 7-hydroxy-4-trifluoromethylcoumarin was observed with mutants containing the F87V substitution, with A74G/F87V showing the highest catalytic efficiency (0.458 min(-1) mu M-1). To simplify the assay procedure and show its versatility, different modes of application were successfully demonstrated, including (i) the direct use of NADPH or its oxidized form NADP(+) along with diverse NADPH recycling systems for electron supply, (ii) the use of cell-free lysates and whole-cell preparations as the biocatalyst source, and (iii) its use for competitive inhibition screens to identify or characterize substrates and inhibitors. A detailed comparison with known, fluorescence-based P450 BM3 assays finally emphasizes the relevance of our contribution to the ongoing research. (C) 2014 Elsevier Inc. All rights reserved.

  DOI：

  10.1016/j.ab.2014.03.022
• 作为产物：
  描述：

  12-溴十二烷酸 在 硫酸 、 potassium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 63.0h， 生成 methyl 12-(3H-phenoxazin-3-one-7-yloxy)dodecanoate
  参考文献：
  名称：

  Evaluation of coumarin-based fluorogenic P450 BM3 substrates and prospects for competitive inhibition screenings

  摘要：

  Fluorescence-based assays for the cytochrome P450 BM3 monooxygenase from Bacillus megaterium address an attractive biotechnological challenge by facilitating enzyme engineering and the identification of potential substrates of this highly promising biocatalyst. In the current study, we used the scarcity of corresponding screening systems as an opportunity to evaluate a novel and continuous high-throughput assay for this unique enzyme. A set of nine catalytically diverse P450 BM3 variants was constructed and tested toward the native substrate-inspired fluorogenic substrate 12-(4-trifluoromethylcoumarin-7-yloxy)dodecanoic acid. Particularly high enzyme-mediated 0-dealkylation yielding the fluorescent product 7-hydroxy-4-trifluoromethylcoumarin was observed with mutants containing the F87V substitution, with A74G/F87V showing the highest catalytic efficiency (0.458 min(-1) mu M-1). To simplify the assay procedure and show its versatility, different modes of application were successfully demonstrated, including (i) the direct use of NADPH or its oxidized form NADP(+) along with diverse NADPH recycling systems for electron supply, (ii) the use of cell-free lysates and whole-cell preparations as the biocatalyst source, and (iii) its use for competitive inhibition screens to identify or characterize substrates and inhibitors. A detailed comparison with known, fluorescence-based P450 BM3 assays finally emphasizes the relevance of our contribution to the ongoing research. (C) 2014 Elsevier Inc. All rights reserved.

  DOI：

  10.1016/j.ab.2014.03.022