3,4-diacetoxy-5-chlorobenzoyl chloride | 141555-21-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚酯
• 英文名称: 3,4-diacetoxy-5-chlorobenzoyl chloride
• 英文别名: 3-chloro-4,5-diacetoxybenzoyl chloride；(2-Acetyloxy-5-carbonochloridoyl-3-chlorophenyl) acetate
• CAS: 141555-21-7
• 化学式: C₁₁H₈Cl₂O₅
• 分子量: 291.088
• InChiKey: ROYCESOWRLUIMM-UHFFFAOYSA-N

物化性质

• 沸点：
  401.4±45.0 °C(Predicted)
• 密度：
  1.433±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  18
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  69.7
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  3,4-diacetoxy-5-chlorobenzoyl chloride 在 硫酸 、 三乙胺 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 0.5h， 生成 N-(1-Adamantyl)-3,4-dihydroxy-5-chlorobenzamide
  参考文献：
  名称：

  某些新型有效的选择性邻苯二酚O-甲基转移酶抑制剂的合成。

  摘要：

  合成了一系列二取代的邻苯二酚衍生物，并测试了其作为潜在的COMT抑制剂的能力。活性最高的化合物在体外的效价（IC50 = 3-6 nM）比已知的COMT抑制剂3'，4'-二羟基-2-甲基苯乙酮（U 0521，IC50 = 6000 nM）高出1000倍以上。新化合物也是高度选择性的COMT抑制剂，对儿茶酚胺的合成和代谢中涉及的其他必需酶没有活性。

  DOI：

  10.1021/jm00124a017
• 作为产物：
  描述：

  3,4-diacetoxy-5-chlorobenzoic acid 在 氯化亚砜 作用下， 反应 0.33h， 以100%的产率得到3,4-diacetoxy-5-chlorobenzoyl chloride
  参考文献：
  名称：

  Pharmacokinetics of catechol cephalosporins. The effect of incorporating substituents into the catechol moiety on pharmacokinetics in a marmoset model

  摘要：

  Two series of cephalosporins A and B have been synthesized, bearing at C-3' catechols substituted with various electron withdrawing groups (Y) and differing links (X), and were evaluated for their in vitro antibacterial activity and their pharmacokinetics in marmosets. Compounds in series A, bearing an isobutyric oxime substituent, proved to be highly active against Gram-negative organisms and were especially noteworthy for showing long elimination phase (beta) half-lives in marmosets. It was established that introduction of electron withdrawing substituents greatly increased the beta-half-lives of compounds (5, X = NHCO, Y = H, t1/2 = 1.25 h, AUC = 27 mg/h per L; 11, X = NHCO, Y = 5-Cl, t1/2, = 4.5 h, AUC = 638 mg/h per L) and that the nature of the link also influenced t1/2, the highest values being obtained when X = NHCO and OCO. Acidities (pK(a) values) of the substituted catechols were measured, and relationships between the acidities and half-lives were evaluated. Thus it was established that the more acidic catechols gave the longest half-lives (12, X = NHCO, Y = 2,5-Cl2, t1/2 = 8.2 h, AUC = 461 mg/h per L). Further elaboration of the catechol to bicyclic systems maintained good pharmacokinetics when the pK(a) was sufficiently acidic.

  DOI：

  10.1021/jm00092a015

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.