ethyl (3S,4S,5S)-3,4-acetylimino-5-hydroxycyclohex-1-ene-1-carboxylate

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吖庚因类
• 英文名称: ethyl (3S,4S,5S)-3,4-acetylimino-5-hydroxycyclohex-1-ene-1-carboxylate
• 英文别名: ethyl (1S,5S,6S)-7-acetyl-5-hydroxy-7-azabicyclo[4.1.0]hept-2-ene-3-carboxylate
• 化学式: C₁₁H₁₅NO₄
• 分子量: 225.244
• InChiKey: SQLBFGRJEZWMMS-AFLRRFOUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.4
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.64
• 拓扑面积：
  66.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  ethyl (3S,4S,5S)-3,4-acetylimino-5-hydroxycyclohex-1-ene-1-carboxylate 在 4-二甲氨基吡啶 、 sodium azide 、 三氟化硼乙醚 、 sodium hydride 、 三乙胺 、 lithium chloride 作用下， 以 四氢呋喃 、 乙酸乙酯 、 N,N-二甲基甲酰胺 为溶剂， 反应 6.5h， 生成 5-叠氮奥塞米韦
  参考文献：
  名称：

  A novel and high-yielding asymmetric synthesis of oseltamivir phosphate (Tamiflu) starting from (−)-shikimic acid

  摘要：

  A novel and high-yielding asymmetric synthesis of oseltamivir phosphate 1 (Tamiflu(R)) is described. The target compound 1 was obtained in 55% overall yield via an 11-step asymmetric synthesis starting from the naturally abundant (-)-shikimic acid. The present synthesis is characterized by some advantages such as the easy separation of intermediate 6 from triphenylphosphine oxide by using its large water-solubility, the use of inexpensive reagents throughout the synthesis, the lack of toxic heavy metals, mild reaction conditions and high yields for all steps. The stereochemical structure of the key intermediate 6 was unequivocally confirmed by X-ray crystallographic analysis. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2012.05.014
• 作为产物：
  描述：

  ethyl (3aS,4R,7aR)-4-hydroxy-2-oxo-3a,4,5,7a-tetrahydro-1,3,2lambda4-benzodioxathiole-6-carboxylate 在 4-二甲氨基吡啶 、 sodium azide 、 氯化铵 、 三乙胺 、 三苯基膦 作用下， 以 乙醇 、 二氯甲烷 、 水 、 乙酸乙酯 、 N,N-二甲基甲酰胺 为溶剂， 反应 16.83h， 生成 ethyl (3S,4S,5S)-3,4-acetylimino-5-hydroxycyclohex-1-ene-1-carboxylate
  参考文献：
  名称：

  A novel and high-yielding asymmetric synthesis of oseltamivir phosphate (Tamiflu) starting from (−)-shikimic acid

  摘要：

  A novel and high-yielding asymmetric synthesis of oseltamivir phosphate 1 (Tamiflu(R)) is described. The target compound 1 was obtained in 55% overall yield via an 11-step asymmetric synthesis starting from the naturally abundant (-)-shikimic acid. The present synthesis is characterized by some advantages such as the easy separation of intermediate 6 from triphenylphosphine oxide by using its large water-solubility, the use of inexpensive reagents throughout the synthesis, the lack of toxic heavy metals, mild reaction conditions and high yields for all steps. The stereochemical structure of the key intermediate 6 was unequivocally confirmed by X-ray crystallographic analysis. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2012.05.014

文献信息

• A novel and high-yielding asymmetric synthesis of oseltamivir phosphate (Tamiflu) starting from (−)-shikimic acid
  作者：Liang-Deng Nie、Wei Ding、Xiao-Xin Shi、Na Quan、Xia Lu

  DOI：10.1016/j.tetasy.2012.05.014

  日期：2012.5

  A novel and high-yielding asymmetric synthesis of oseltamivir phosphate 1 (Tamiflu(R)) is described. The target compound 1 was obtained in 55% overall yield via an 11-step asymmetric synthesis starting from the naturally abundant (-)-shikimic acid. The present synthesis is characterized by some advantages such as the easy separation of intermediate 6 from triphenylphosphine oxide by using its large water-solubility, the use of inexpensive reagents throughout the synthesis, the lack of toxic heavy metals, mild reaction conditions and high yields for all steps. The stereochemical structure of the key intermediate 6 was unequivocally confirmed by X-ray crystallographic analysis. (C) 2012 Elsevier Ltd. All rights reserved.