3-cyano-3-hydroxy-tetrahydrothiophene-4-carboxylic acid methyl ester | 155251-30-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 硫杂环戊烷
• 英文名称: 3-cyano-3-hydroxy-tetrahydrothiophene-4-carboxylic acid methyl ester
• 英文别名: Methyl 4-cyano-4-hydroxythiolane-3-carboxylate；methyl 4-cyano-4-hydroxythiolane-3-carboxylate
• CAS: 155251-30-2
• 化学式: C₇H₉NO₃S
• 分子量: 187.219
• InChiKey: HCKNQPFZDIYYEA-UHFFFAOYSA-N

物化性质

• 沸点：
  368.7±42.0 °C(Predicted)
• 密度：
  1.37±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.71
• 拓扑面积：
  95.6
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  3-cyano-3-hydroxy-tetrahydrothiophene-4-carboxylic acid methyl ester 在 吡啶 、 盐酸 、 氯化亚砜 、 水 、 溶剂黄146 、 1-butyl-3-methylimidazolium Tetrafluoroborate 、 三氯氧磷 作用下， 以 苯 为溶剂， 反应 28.0h， 生成 cantharidin
  参考文献：
  名称：

  一种斑蝥素的合成工艺

  摘要：

  本发明涉及一种在常压条件下制备斑蝥素的绿色环保合成工艺，属于药物合成与制备领域。所述工艺包括以下步骤：采用NaCN水溶液制备3‑氰基‑3‑羟基‑4‑甲酸甲酯‑2,5‑四氢噻吩；在噻吩中加入苯与吡啶、POCl3，制备3‑氰基‑4‑甲酸甲酯‑2,5‑二氢噻吩；再加入乙酸、浓盐酸进行回流反应，制得2,5‑二氢噻吩‑3,4‑二羧酸粉末；将制得的二羧酸与二氯亚砜搅拌回流，制备2,5‑二氢噻吩‑3,4‑二羧酸酐；按二羧酸酐∶呋喃∶离子液体的固液比为＝1mg∶3.5～6μl∶2～4μl进行加热反应，萃取，Raney‑Ni回流，即得斑蝥素。本工艺不需要超高压的条件和设备，在20～50℃过夜反应即可，条件十分温和，转化率高，且斑蝥素收率高，为斑蝥素的工业化生产提供了十分有利的条件。

  公开号：

  CN106674248B
• 作为产物：
  描述：

  3-[(2-甲氧基-2-乙氧基)硫醇]甲基丙酸 在 吡啶 、 sodium hydrogensulfite 作用下， 以 水 、 甲苯 为溶剂， 反应 18.5h， 生成 3-cyano-3-hydroxy-tetrahydrothiophene-4-carboxylic acid methyl ester
  参考文献：
  名称：

  The novel method to synthesis of Cantharidin intermediate

  摘要：

  Sulfur-containing dehydrocantharidin(SD) was yielded (76% to 96%) by Diels-Alder reaction in an ionic-liquid system under ordinary pressure and temperature. We explored the influences of different ionic-liquid types, reaction temperatures, and reaction times in this reaction. We found that the optimal reaction temperature was about 35 degrees C, the reaction time was 20 h, and the most suitable ionic liquid was 1-butyl-3-methylimidazolium tetrafluoroborate. Furthermore, in the recycling process of ionic liquid, we found that CH3CN was the most suitable extraction solvent. We explored four steps in the synthetic route to SD and achieved a good yield of 38% in total. We envisage that this process could be further developed at an industrial scale for the synthesis of Cantharidin and is destined to be an environmentally friendly way to solve the lack of cantharis as a natural resource.

  DOI：

  10.33224/rrch/2019.64.3.09

文献信息

• SAR, species specificity, and cellular activity of cyclopentene dicarboxylic acid amides as DHODH inhibitors
  作者：Johann Leban、Martin Kralik、Jan Mies、Michael Gassen、Karin Tentschert、Roland Baumgartner

  DOI：10.1016/j.bmcl.2005.07.053

  日期：2005.11

  Novel DHODH inhibitors were developed based on a previously described series by introduction of heteroatoms into the cyclopentene ring and hydroxyl groups attached to it. Also, the hydrophobic biphenyl side chain was replaced with benzyloxy phenyl groups. Activities on human, rat, and mouse enzymes indicate a species specificity of these inhibitors. (c) 2005 Elsevier Ltd. All rights reserved.
• 一种斑蝥素的合成工艺
  申请人：重庆市中药研究院

  公开号：CN106674248B

  公开（公告）日：2019-02-26

  本发明涉及一种在常压条件下制备斑蝥素的绿色环保合成工艺，属于药物合成与制备领域。所述工艺包括以下步骤：采用NaCN水溶液制备3‑氰基‑3‑羟基‑4‑甲酸甲酯‑2,5‑四氢噻吩；在噻吩中加入苯与吡啶、POCl3，制备3‑氰基‑4‑甲酸甲酯‑2,5‑二氢噻吩；再加入乙酸、浓盐酸进行回流反应，制得2,5‑二氢噻吩‑3,4‑二羧酸粉末；将制得的二羧酸与二氯亚砜搅拌回流，制备2,5‑二氢噻吩‑3,4‑二羧酸酐；按二羧酸酐∶呋喃∶离子液体的固液比为＝1mg∶3.5～6μl∶2～4μl进行加热反应，萃取，Raney‑Ni回流，即得斑蝥素。本工艺不需要超高压的条件和设备，在20～50℃过夜反应即可，条件十分温和，转化率高，且斑蝥素收率高，为斑蝥素的工业化生产提供了十分有利的条件。
• The novel method to synthesis of Cantharidin intermediate
  作者：Chunbin TAN、Xiaoling LIU、Hongfei DU

  DOI：10.33224/rrch/2019.64.3.09

  日期：——

  Sulfur-containing dehydrocantharidin(SD) was yielded (76% to 96%) by Diels-Alder reaction in an ionic-liquid system under ordinary pressure and temperature. We explored the influences of different ionic-liquid types, reaction temperatures, and reaction times in this reaction. We found that the optimal reaction temperature was about 35 degrees C, the reaction time was 20 h, and the most suitable ionic liquid was 1-butyl-3-methylimidazolium tetrafluoroborate. Furthermore, in the recycling process of ionic liquid, we found that CH3CN was the most suitable extraction solvent. We explored four steps in the synthetic route to SD and achieved a good yield of 38% in total. We envisage that this process could be further developed at an industrial scale for the synthesis of Cantharidin and is destined to be an environmentally friendly way to solve the lack of cantharis as a natural resource.