diethyl 2-(1-ethylpropyl)cyclopropane-1,1-dicarboxylate | 132658-46-9

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: diethyl 2-(1-ethylpropyl)cyclopropane-1,1-dicarboxylate
• 英文别名: diethyl 2-(pentan-3-yl)cyclopropane-1,1-dicarboxylate；Diethyl 2-pentan-3-ylcyclopropane-1,1-dicarboxylate
• CAS: 132658-46-9
• 化学式: C₁₄H₂₄O₄
• 分子量: 256.342
• InChiKey: RJQQVNXLAXTCIU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  18
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  diethyl 2-(1-ethylpropyl)cyclopropane-1,1-dicarboxylate 在 水 、 sodium hydroxide 、 potassium hydrogensulfate 作用下， 以 乙醇 、 水 为溶剂， 反应 12.0h， 以85%的产率得到1-(ethoxycarbonyl)-2-(pentan-3-yl)cyclopropanecarboxylic acid
  参考文献：
  名称：

  Synthesis and anticonvulsant activity of new 6-methyl-1-substituted-4,6-diazaspiro[2.4]heptane-5,7-diones

  摘要：

  In the present study on the development of new anticonvulsants, twenty new 6-methyl-1-substituted-4,6-diazaspiro[2.4]heptane-5,7-diones were synthesized and tested for anticonvulsant activity using the maximal electroshock (MES) and subcutaneous pentylenetetrazole (scPTZ) screens. Their neurotoxicity was determined by the rotorod test. In this series, all of the alkyl- and aryl-substituted 5,5-cyclo-propanespirohydantoins showed more or less protection against MES and/or scPTZ models. The most active of the series was 6-methyl-1-(4-(methylsulfonyl)phenyl)-4,6-diazaspiro[2.4]heptane-5,7-dione (6t), which showed a MES ED50 value of 12.5 mg/kg in mice. The median toxic dose (TD50) was 310 mg/kg, providing compound 6t with a protection index (PI = TD50/ED50) of 24.8 in the MES test which is better than phenytoin. (C) 2010 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2010.05.034
• 作为产物：
  描述：

  丙二酸二乙酯 在 哌啶 、 sodium hydride 、 苯甲酸 作用下， 以 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 生成 diethyl 2-(1-ethylpropyl)cyclopropane-1,1-dicarboxylate
  参考文献：
  名称：

  潜在抑制剂。第7部分。螺环丙戊巴比妥酸酯对二氢乳清酸脱氢酶的抑制作用

  摘要：

  合成了一系列在环丙烷环上带有烷基和芳基取代基的5-螺环丙烷基巴比妥酸酯。已证明来自Orticum的梭状芽孢杆菌的二氢乳清酸脱氢酶被这些化合物抑制。制备了一系列相关的五元环化合物（乙内酰脲和吡唑），但发现所有化合物均无活性。为了使这些观察结果与以前的有关5-芳基甲基乙内酰脲和5-芳基-乙内酰脲作为抑制剂的结果相关联，还评估了5-芳基戊二酸酯作为抑制剂，发现它们是所研究化合物中活性最高的。该结果在该酶的分子识别的背景下以及使用底物替代物作为构建酶潜在抑制剂的模板的背景下得到了解释。

  DOI：

  10.1039/p19900003137

文献信息

• Ring Opening of Cyclopropanemonocarboxylates and 1,1-Cyclopropanedicarboxylates Using Samarium(II) Diiodide (SmI2)-HMP-THF System.
  作者：Masayuki YAMASHITA、Kazunori OKUYAMA、Takashi OHHARA、Ikuo KAWASAKI、Kiyomi SAKAI、Sachiko NAKATA、Tokiko KAWABE、Miki KUSUMOTO、Shunsaku OHTA

  DOI：10.1248/cpb.43.2075

  日期：——

  The cyclopropane ring in 2-substituted 1, 1-cyclopropanedicarboxylates was regioselectively opened by using samarium(II) diiodide (SmI2) in a hexamethylphosphoric triamide (HMPA)-tetrahydrofuran (THF) (1 : 10) system under mild and neutral conditions to give (2-substituted ethyl)malonates in moderate to good yields. The cyclopropane ring in 2-substituted cyclopropanecarboxylates or 2-substituted 3-(trimethylsilyl)cyclopropanecarboxylates was similarly cleaved regioselectively by using SmI2 in a HMPA-THF (1 : 1) system to give 4-arylbutyrates or 4-aryl-3-(trimethylsilyl)butyrates in 16-89% yields. The reaction mechanism of these ring-opening reactions is discussed.

  在温和且中性的条件下，使用二碘化钐(II)（SmI2）在六甲基磷酸三酰胺（HMPA）-四氢呋喃（THF）（1 : 10）体系中，对2取代的1,1-环丙烷二羧酸酯的环丙烷环进行了区域选择性开环，得到了产率中等到良好的（2取代乙基）丙二酸酯。而对于2取代的环丙烷羧酸酯或2取代的3-（三甲基硅基）环丙烷羧酸酯，同样使用SmI2在HMPA-THF（1 : 1）体系中进行了区域选择性开环，得到了4-芳基丁酸酯或4-芳基-3-（三甲基硅基）丁酸酯，产率在16%到89%之间。讨论了这些开环反应的机制。
• Synthesis and anticonvulsant activity of new 6-methyl-1-substituted-4,6-diazaspiro[2.4]heptane-5,7-diones
  作者：Xianran He、Guanpeng Qiu、Jin Yang、Yuling Xiao、Zhongyuan Wu、Guofu Qiu、Xianming Hu

  DOI：10.1016/j.ejmech.2010.05.034

  日期：2010.9

  In the present study on the development of new anticonvulsants, twenty new 6-methyl-1-substituted-4,6-diazaspiro[2.4]heptane-5,7-diones were synthesized and tested for anticonvulsant activity using the maximal electroshock (MES) and subcutaneous pentylenetetrazole (scPTZ) screens. Their neurotoxicity was determined by the rotorod test. In this series, all of the alkyl- and aryl-substituted 5,5-cyclo-propanespirohydantoins showed more or less protection against MES and/or scPTZ models. The most active of the series was 6-methyl-1-(4-(methylsulfonyl)phenyl)-4,6-diazaspiro[2.4]heptane-5,7-dione (6t), which showed a MES ED50 value of 12.5 mg/kg in mice. The median toxic dose (TD50) was 310 mg/kg, providing compound 6t with a protection index (PI = TD50/ED50) of 24.8 in the MES test which is better than phenytoin. (C) 2010 Elsevier Masson SAS. All rights reserved.
• Latent inhibitors. Part 7. Inhibition of dihydro-orotate dehydrogenase by spirocyclopropanobarbiturates
  作者：William Fraser、Colin J. Suckling、Hamish C. S. Wood

  DOI：10.1039/p19900003137

  日期：——

  synthesized. Dihydro-orotate dehydrogenase from Clostridium oroticum was shown to be inhibited by these compounds. A related series of 5-membered-ring compounds (hydantoins and pyrazoles) was prepared but all the compounds were found to be inactive. In order to correlate these observations with previous results concerning 5-arylmethylhydantoins and 5-arylidene-hydantoins as inhibitors, 5-arylidenebarbiturates

  合成了一系列在环丙烷环上带有烷基和芳基取代基的5-螺环丙烷基巴比妥酸酯。已证明来自Orticum的梭状芽孢杆菌的二氢乳清酸脱氢酶被这些化合物抑制。制备了一系列相关的五元环化合物（乙内酰脲和吡唑），但发现所有化合物均无活性。为了使这些观察结果与以前的有关5-芳基甲基乙内酰脲和5-芳基-乙内酰脲作为抑制剂的结果相关联，还评估了5-芳基戊二酸酯作为抑制剂，发现它们是所研究化合物中活性最高的。该结果在该酶的分子识别的背景下以及使用底物替代物作为构建酶潜在抑制剂的模板的背景下得到了解释。