ethyl 3-(3-bromo-4,5-dihydroxyphenyl)-3-oxopropionate | 141613-48-1

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: ethyl 3-(3-bromo-4,5-dihydroxyphenyl)-3-oxopropionate
• 英文别名: Ethyl 3-(3-bromo-4,5-dihydroxyphenyl)-3-oxopropanoate
• CAS: 141613-48-1
• 化学式: C₁₁H₁₁BrO₅
• 分子量: 303.109
• InChiKey: OSRSGSUZPFCHNO-UHFFFAOYSA-N

物化性质

• 沸点：
  550.3±50.0 °C(Predicted)
• 密度：
  1.895±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  17
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  83.8
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  ethyl 3-(3-bromo-4,5-dihydroxyphenyl)-3-oxopropionate 在 三氟化硼乙醚 、 水 、 溶剂黄146 、 三乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 7.0h， 生成
  参考文献：
  名称：

  Synthesis and structure-activity relationships of cephalosporins with C-3' catechol-containing residues

  摘要：

  Cephalosporins with new catechol substituents at C-3' have been synthesized, including novel compounds with C-3' carbon-carbon bonds. Many of these compounds have high potency against Gram-negative bacteria, in particular against resistant strains like Pseudomonas aeruginosa. Structure-activity relationships are discussed in terms of their dependence on the pK(a) of the C-3' catechol and also in terms of steric and conformational factors of the C-3' substituent. The best overall properties were found in compounds with a bulky and/or conformationally restricted acidic C-3' catechol.

  DOI：

  10.1021/jm00092a014
• 作为产物：
  描述：

  3-溴-4,5-二甲氧基苯甲醛 在 jones reagent 、 三溴化硼 、 sodium hydride 作用下， 以 四氢呋喃 、 二氯甲烷 、 丙酮 为溶剂， 反应 4.33h， 生成 ethyl 3-(3-bromo-4,5-dihydroxyphenyl)-3-oxopropionate
  参考文献：
  名称：

  Synthesis and structure-activity relationships of cephalosporins with C-3' catechol-containing residues

  摘要：

  Cephalosporins with new catechol substituents at C-3' have been synthesized, including novel compounds with C-3' carbon-carbon bonds. Many of these compounds have high potency against Gram-negative bacteria, in particular against resistant strains like Pseudomonas aeruginosa. Structure-activity relationships are discussed in terms of their dependence on the pK(a) of the C-3' catechol and also in terms of steric and conformational factors of the C-3' substituent. The best overall properties were found in compounds with a bulky and/or conformationally restricted acidic C-3' catechol.

  DOI：

  10.1021/jm00092a014

文献信息

• Synthesis and structure-activity relationships of cephalosporins with C-3' catechol-containing residues
  作者：J. C. Arnould、A. Bertrandie、T. G. C. Bird、D. Boucherot、F. Jung、J. J. Lohmann、A. Olivier、J. P. Bailey、W. Bell、G. M. Davies

  DOI：10.1021/jm00092a014

  日期：1992.7

  Cephalosporins with new catechol substituents at C-3' have been synthesized, including novel compounds with C-3' carbon-carbon bonds. Many of these compounds have high potency against Gram-negative bacteria, in particular against resistant strains like Pseudomonas aeruginosa. Structure-activity relationships are discussed in terms of their dependence on the pK(a) of the C-3' catechol and also in terms of steric and conformational factors of the C-3' substituent. The best overall properties were found in compounds with a bulky and/or conformationally restricted acidic C-3' catechol.