ethyl 2-(7-hydroxy-4,8-dimethyl-2-oxo-2H-chromen-3-yl)acetate | 251361-19-0

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 香豆素及其衍生物
• 英文名称: ethyl 2-(7-hydroxy-4,8-dimethyl-2-oxo-2H-chromen-3-yl)acetate
• 英文别名: Ethyl 2-(7-hydroxy-4,8-dimethyl-2-oxochromen-3-yl)acetate；ethyl 2-(7-hydroxy-4,8-dimethyl-2-oxochromen-3-yl)acetate
• CAS: 251361-19-0
• 化学式: C₁₅H₁₆O₅
• 分子量: 276.289
• InChiKey: RMVABQWOTFZIFM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  20
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  72.8
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  ethyl 2-(7-hydroxy-4,8-dimethyl-2-oxo-2H-chromen-3-yl)acetate 在 sodium hydroxide 作用下， 生成 (7-hydroxy-4,8-dimethyl-2-oxochromen-3-yl)acetic acid
  参考文献：
  名称：

  香豆素羧酸作为回旋酶B的抑制剂的合成和生物学评估。L-鼠李糖可替代L-新古糖。

  摘要：

  已经制备了一系列带有L-鼠李糖基部分作为分子糖部分的新生物素样香豆素羧酸。新型香豆素对DNA促旋酶的抑制活性与新霉素相似，这表明L-鼠李糖可以有效替代L-鼠新糖。在香豆素的C-5处引入烷基侧链可改善新系列的体外抗菌性能。

  DOI：

  10.1016/s0960-894x(99)00493-x
• 作为产物：
  描述：

  乙酰琥珀酸二乙酯 、 2,6-二羟基甲苯 在 硫酸 作用下， 以23%的产率得到ethyl 2-(7-hydroxy-4,8-dimethyl-2-oxo-2H-chromen-3-yl)acetate
  参考文献：
  名称：

  香豆素羧酸作为回旋酶B的抑制剂的合成和生物学评估。L-鼠李糖可替代L-新古糖。

  摘要：

  已经制备了一系列带有L-鼠李糖基部分作为分子糖部分的新生物素样香豆素羧酸。新型香豆素对DNA促旋酶的抑制活性与新霉素相似，这表明L-鼠李糖可以有效替代L-鼠新糖。在香豆素的C-5处引入烷基侧链可改善新系列的体外抗菌性能。

  DOI：

  10.1016/s0960-894x(99)00493-x

文献信息

• Synthesis and biological evaluation of coumarincarboxylic acids as inhibitors of gyrase B. L-rhamnose as an effective substitute for L-noviose
  作者：Didier Ferroud、Jeannine Collard、Michel Klich、Claudine Dupuis-Hamelin、Pascale Mauvais、Patrice Lassaigne、Alain Bonnefoy、Branislav Musicki

  DOI：10.1016/s0960-894x(99)00493-x

  日期：1999.10

  A series of novobiocin-like coumarincarboxylic acids has been prepared bearing the L-rhamnosyl moiety as the sugar portion of the molecule. The similar DNA gyrase inhibitory activity of the novel class of coumarins to that of novobiocin demonstrates that L-rhamnose can effectively replace L-noviose. Introduction of alkyl side-chains at C-5 of coumarin leads to improved in vitro antibacterial properties

  已经制备了一系列带有L-鼠李糖基部分作为分子糖部分的新生物素样香豆素羧酸。新型香豆素对DNA促旋酶的抑制活性与新霉素相似，这表明L-鼠李糖可以有效替代L-鼠新糖。在香豆素的C-5处引入烷基侧链可改善新系列的体外抗菌性能。
• Coumarin-Based Inhibitors of Bacillus anthracis and Staphylococcus aureus Replicative DNA Helicase: Chemical Optimization, Biological Evaluation, and Antibacterial Activities
  作者：Bing Li、Ramdas Pai、Ming Di、Daniel Aiello、Marjorie H. Barnes、Michelle M. Butler、Tommy F. Tashjian、Norton P. Peet、Terry L. Bowlin、Donald T. Moir

  DOI：10.1021/jm300922h

  日期：2012.12.27

  The increasing prevalence of drug-resistant bacterial infections demands the development of new antibacterials that are not subject to existing mechanisms of resistance. Previously, we described coumarin-based inhibitors of an underexploited bacterial target, namely the replicative helicase. Here we report the synthesis and evaluation of optimized coumarin-based inhibitors with 9-18-fold increased potency against Staphylococcus aureus (Sa) and Bacillus anthracis (Ba) helicases. Compounds 20 and 22 provided the best potency, with IC50 values of 3 and 1 mu M, respectively, against the DNA duplex strand-unwinding activities of both B. anthracis and S. aureus helicases without affecting the single strand DNA-stimulated ATPase activity. Selectivity index (SI = CC50/MIC) values against S. aureus and B. anthracis for compound 20 were 33 and 66 and for compound 22 were 20 and 40, respectively. In addition, compounds 20 and 22 demonstrated potent antibacterial activity against multiple ciprofloxacin-resistant MRSA strains, with MIC values ranging between 0.5 and 4.2 mu g/mL.