甲基氢(4-乙氧基苯基)膦酸酯 | 131066-54-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 中文名称: 甲基氢(4-乙氧基苯基)膦酸酯
• 英文名称: methyl (p-ethoxyphenyl)phosphonic acid
• 英文别名: (4-Ethoxyphenyl)-methoxyphosphinic acid
• CAS: 131066-54-1
• 化学式: C₉H₁₃O₄P
• 分子量: 216.174
• InChiKey: RUQWXKWOKFVXQE-UHFFFAOYSA-N

物化性质

• 熔点：
  90-91.5 °C(Solv: ethyl acetate (141-78-6); hexane (110-54-3))
• 沸点：
  334.2±44.0 °C(Predicted)
• 密度：
  1.23±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  14
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  55.8
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  甲基氢(4-乙氧基苯基)膦酸酯 在 lithium hydroxide 、 双(2-氧代-3-恶唑烷基)次磷酰氯 、 三乙胺 作用下， 以 乙腈 为溶剂， 反应 96.0h， 生成 (2S)-2-[[(2S)-2-[(4-ethoxyphenyl)-hydroxyphosphoryl]oxy-4-methylpentanoyl]amino]-4-methylpentanoic acid
  参考文献：
  名称：

  Differential binding energy: a detailed evaluation of the influence of hydrogen-bonding and hydrophobic groups on the inhibition of thermolysin by phosphorus-containing inhibitors

  摘要：

  Two series of phosphorus-containing peptide analogues, 3 (Cbz-Gly-psi(PO2-CH2)Leu-Xaa) and 4 (Cbz-Gly-psi-(PO2-NH)Leu-psi[CO2]Xaa), have been synthesized and evaluated as inhibitors of the zinc endopeptidase thermolysin. In comparison with the previously reported phosphonamidates 1, the phosphinates 3 lose only 0.1 kcal/mol in binding affinity, whereas the depsipeptides 4 are bound 2.7 kcal/mol more weakly; these values are contrasted to the 4.0 kcal/mol reduction in binding affinity observed for the phosphonates 2 (Cbz-Gly-psi(PO2-O)Leu-Xaa) in comparison to 1 (Cbz-Gly-psi(PO2-NH)Leu-Xaa). The observed effects are interpreted through consideration of the differences in active-site and solvent interactions. For the comparison between the diamides 1 and the depsipeptides 4, a full accounting of the balance between these interactions can be approached. The arylphosphonates 5 (Aryl-psi(PO2-O)Leu-Leu) were synthesized and evaluated to investigate the importance of phosphonate basicity on the overall binding affinity of these zinc-coordinating inhibitors; the inhibitor K(i) values were found to be independent of phosphonate p(K)a, indicating that the basicity of the phosphonate moiety exerts counterbalancing effects on the energies of zinc coordination and solvation. For analysis of the influence of structural variations on observed affinity, the definition of "differential binding energy" is introduced as a practical alternative to the concept of "intrinsic binding energy".

  DOI：

  10.1021/ja00001a043
• 作为产物：
  描述：

  (4-乙氧基苯基)膦酸 、 原甲酸三甲酯 在 sodium hydroxide 作用下， 生成 甲基氢(4-乙氧基苯基)膦酸酯
  参考文献：
  名称：

  Differential binding energy: a detailed evaluation of the influence of hydrogen-bonding and hydrophobic groups on the inhibition of thermolysin by phosphorus-containing inhibitors

  摘要：

  Two series of phosphorus-containing peptide analogues, 3 (Cbz-Gly-psi(PO2-CH2)Leu-Xaa) and 4 (Cbz-Gly-psi-(PO2-NH)Leu-psi[CO2]Xaa), have been synthesized and evaluated as inhibitors of the zinc endopeptidase thermolysin. In comparison with the previously reported phosphonamidates 1, the phosphinates 3 lose only 0.1 kcal/mol in binding affinity, whereas the depsipeptides 4 are bound 2.7 kcal/mol more weakly; these values are contrasted to the 4.0 kcal/mol reduction in binding affinity observed for the phosphonates 2 (Cbz-Gly-psi(PO2-O)Leu-Xaa) in comparison to 1 (Cbz-Gly-psi(PO2-NH)Leu-Xaa). The observed effects are interpreted through consideration of the differences in active-site and solvent interactions. For the comparison between the diamides 1 and the depsipeptides 4, a full accounting of the balance between these interactions can be approached. The arylphosphonates 5 (Aryl-psi(PO2-O)Leu-Leu) were synthesized and evaluated to investigate the importance of phosphonate basicity on the overall binding affinity of these zinc-coordinating inhibitors; the inhibitor K(i) values were found to be independent of phosphonate p(K)a, indicating that the basicity of the phosphonate moiety exerts counterbalancing effects on the energies of zinc coordination and solvation. For analysis of the influence of structural variations on observed affinity, the definition of "differential binding energy" is introduced as a practical alternative to the concept of "intrinsic binding energy".

  DOI：

  10.1021/ja00001a043

文献信息

• Differential binding energy: a detailed evaluation of the influence of hydrogen-bonding and hydrophobic groups on the inhibition of thermolysin by phosphorus-containing inhibitors
  作者：Bradley Morgan、John M. Scholtz、Marcus D. Ballinger、Ilan D. Zipkin、Paul A. Bartlett

  DOI：10.1021/ja00001a043

  日期：1991.1

  Two series of phosphorus-containing peptide analogues, 3 (Cbz-Gly-psi(PO2-CH2)Leu-Xaa) and 4 (Cbz-Gly-psi-(PO2-NH)Leu-psi[CO2]Xaa), have been synthesized and evaluated as inhibitors of the zinc endopeptidase thermolysin. In comparison with the previously reported phosphonamidates 1, the phosphinates 3 lose only 0.1 kcal/mol in binding affinity, whereas the depsipeptides 4 are bound 2.7 kcal/mol more weakly; these values are contrasted to the 4.0 kcal/mol reduction in binding affinity observed for the phosphonates 2 (Cbz-Gly-psi(PO2-O)Leu-Xaa) in comparison to 1 (Cbz-Gly-psi(PO2-NH)Leu-Xaa). The observed effects are interpreted through consideration of the differences in active-site and solvent interactions. For the comparison between the diamides 1 and the depsipeptides 4, a full accounting of the balance between these interactions can be approached. The arylphosphonates 5 (Aryl-psi(PO2-O)Leu-Leu) were synthesized and evaluated to investigate the importance of phosphonate basicity on the overall binding affinity of these zinc-coordinating inhibitors; the inhibitor K(i) values were found to be independent of phosphonate p(K)a, indicating that the basicity of the phosphonate moiety exerts counterbalancing effects on the energies of zinc coordination and solvation. For analysis of the influence of structural variations on observed affinity, the definition of "differential binding energy" is introduced as a practical alternative to the concept of "intrinsic binding energy".