ethyl (2-formyl-6-nitrophenoxy)acetate | 110683-71-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: ethyl (2-formyl-6-nitrophenoxy)acetate
• 英文别名: Acetic acid, 2-(2-formyl-6-nitrophenoxy)-, ethyl ester；ethyl 2-(2-formyl-6-nitrophenoxy)acetate
• CAS: 110683-71-1
• 化学式: C₁₁H₁₁NO₆
• 分子量: 253.211
• InChiKey: AWKSRESXXRORER-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  18
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  98.4
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  ethyl (2-formyl-6-nitrophenoxy)acetate 在 铁粉 、 氯化铵 作用下， 以 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 1.67h， 以7.1 kg的产率得到3-氧代-3,4-二氢-2H-苯并[b][1,4]噁嗪-8-甲醛
  参考文献：
  名称：

  Development of an Efficient Large-Scale Synthesis for a 4H-imidazo[5,1-c][1,4]benzoxazine-3-carboxamide Derivative for Depression and Anxiety

  摘要：

  The development and scale-up of an optimized synthesis for a novel drug candidate for depression and anxiety is presented. The updated synthesis represents a convergent and efficient four-stage approach to the API, overcoming high cost of goods (COG), general lack of convergence, and low yield of previous routes. A lower cost of goods resulted from using 3-nitrosalicylaldehyde as a starting material and introducing the expensive side chain (2-methyl-5-(piperazin-1-yl)quinoline) at a later stage. Green chemistry principles were applied when a direct amidation enabled a straightforward conversion of the 4H-imidazo[5,1-c][1,4]benzoxazine-3-carboxylate to the corresponding amide in the last step. In addition, the total number of stages was reduced from seven to four, and solvent usage was greatly minimized. The modified synthesis NUS demonstrated on a kilogram pilot scale, allowing the isolation of the API in 17% overall yield with the required purity.

  DOI：

  10.1021/op100103v
• 作为产物：
  描述：

  3-硝基水杨醛 生成 ethyl (2-formyl-6-nitrophenoxy)acetate
  参考文献：
  名称：

  Organic Process Research and Development 2010, 14, 859-867

  摘要：

  DOI：

文献信息

• New potent antagonists of leukotrienes C4 and D4. 1. Synthesis and structure-activity relationships
  作者：Hisao Nakai、Mitoshi Konno、Shunji Kosuge、Shigeru Sakuyama、Masaaki Toda、Yoshinobu Arai、Takaaki Obata、Nobuo Katsube、Tsumoru Miyamoto

  DOI：10.1021/jm00396a013

  日期：1988.1

  (p-Amylcinnamoyl)anthranilic acid (3a) had moderate antagonist activities against LTD4-induced smooth muscle contraction on guinea pig ileum and LTC4-induced bronchoconstriction in anesthetized guinea pigs. Modifications were made in the hydrophobic part (cinnamoyl moiety) and the hydrophilic part (anthranilate moiety) of 3a. A series of 8-(benzoylamino)-2-tetrazol-5-yl-1,4-benzodioxans and 8-(ben

  （p-戊基肉桂酰基）邻氨基苯甲酸（3a）对LTD4-诱导的豚鼠回肠平滑肌收缩和LTC4诱导的豚鼠支气管收缩具有中等程度的拮抗活性。对3a的疏水部分（肉桂酰基部分）和亲水部分（邻氨基苯甲酸酯部分）进行了修饰。揭示了一系列的8-（苯甲酰基氨基）-2-四唑-5-基-1，4-苯并二恶烷和8-（苯甲酰基氨基）-2-四唑-5-基-4-氧代-4H-1-苯并吡喃。白三烯C4和D4的有效拮抗剂。在这两个系列中，ONO-RS-347（18k）和ONO-RS-411（19h）分别是最有效和口服活性的拮抗剂。讨论了构效关系。
• NAKAI, HISAO;KONNO, MITOSHI;KOSUGE, SHUNJI;SAKUYAMA, SHIGERU;TODA, MASAAK+, J. MED. CHEM., 31,(1988) N 1, 84-91
  作者：NAKAI, HISAO、KONNO, MITOSHI、KOSUGE, SHUNJI、SAKUYAMA, SHIGERU、TODA, MASAAK+

  DOI：——

  日期：——
• Organic Process Research and Development 2010, 14, 859-867
  作者：

  DOI：——

  日期：——
• Development of an Efficient Large-Scale Synthesis for a 4<i>H</i>-imidazo[5,1-<i>c</i>][1,4]benzoxazine-3-carboxamide Derivative for Depression and Anxiety
  作者：Nicola Giubellina、Paolo Stabile、Gilles Laval、Alcide D. Perboni、Zadeo Cimarosti、Pieter Westerduin、Jason W. B. Cooke

  DOI：10.1021/op100103v

  日期：2010.7.16

  The development and scale-up of an optimized synthesis for a novel drug candidate for depression and anxiety is presented. The updated synthesis represents a convergent and efficient four-stage approach to the API, overcoming high cost of goods (COG), general lack of convergence, and low yield of previous routes. A lower cost of goods resulted from using 3-nitrosalicylaldehyde as a starting material and introducing the expensive side chain (2-methyl-5-(piperazin-1-yl)quinoline) at a later stage. Green chemistry principles were applied when a direct amidation enabled a straightforward conversion of the 4H-imidazo[5,1-c][1,4]benzoxazine-3-carboxylate to the corresponding amide in the last step. In addition, the total number of stages was reduced from seven to four, and solvent usage was greatly minimized. The modified synthesis NUS demonstrated on a kilogram pilot scale, allowing the isolation of the API in 17% overall yield with the required purity.