α-Acetoxy-α-ethyl-buttersaeure | 90113-80-7

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: α-Acetoxy-α-ethyl-buttersaeure
• 英文别名: 2-(Acetyloxy)-2-ethylbutanoicacid；2-acetyloxy-2-ethylbutanoic acid
• CAS: 90113-80-7
• 化学式: C₈H₁₄O₄
• 分子量: 174.197
• InChiKey: ZIFFWWNBQJLVFW-UHFFFAOYSA-N

物化性质

• 沸点：
  266.5±23.0 °C(Predicted)
• 密度：
  1.097±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  12
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  63.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  α-Acetoxy-α-ethyl-buttersaeure 在 氯化亚砜 作用下， 以 吡啶 为溶剂， 反应 0.17h， 生成 2-Acetoxy-2-ethyl-buttersaeure-chlorid
  参考文献：
  名称：

  8-Polycycloalkyl-1,3-dipropylxanthines as potent and selective antagonists for A1-adenosine receptors

  摘要：

  With the aim of characterizing the hydrophobic interactions between xanthines and the A1 receptor site, 1,3-dipropyl-8-substituted xanthines were synthesized. Introduction of a quaternary carbon and the conformationally restricted cyclopentyl moiety into the 8-position of xanthines enhanced the adenosine A1 antagonism. 1,3-Dipropyl-8-(3-noradamantyl)xanthine (42) was identified to be a selective and the most potent A1 receptor antagonist reported to date. Under our structure-activity relationship, the 8-substituent of xanthine antagonists and the N6-substituent of adenosine agonists appears to bind to the same region of the A1 receptor.

  DOI：

  10.1021/jm00083a018
• 作为产物：
  描述：

  2-乙基-2-羟基丁酸 、 乙酸酐 在 4-二甲氨基吡啶 作用下， 以 吡啶 为溶剂， 反应 1.0h， 生成 α-Acetoxy-α-ethyl-buttersaeure
  参考文献：
  名称：

  8-Polycycloalkyl-1,3-dipropylxanthines as potent and selective antagonists for A1-adenosine receptors

  摘要：

  With the aim of characterizing the hydrophobic interactions between xanthines and the A1 receptor site, 1,3-dipropyl-8-substituted xanthines were synthesized. Introduction of a quaternary carbon and the conformationally restricted cyclopentyl moiety into the 8-position of xanthines enhanced the adenosine A1 antagonism. 1,3-Dipropyl-8-(3-noradamantyl)xanthine (42) was identified to be a selective and the most potent A1 receptor antagonist reported to date. Under our structure-activity relationship, the 8-substituent of xanthine antagonists and the N6-substituent of adenosine agonists appears to bind to the same region of the A1 receptor.

  DOI：

  10.1021/jm00083a018

文献信息

• Azacyclosteroid histamine-3 receptor ligands
  申请人：Zhao Chen

  公开号：US20050227953A1

  公开（公告）日：2005-10-13

  Azacyclosteroid histamine-3 receptor ligands, pharmaceutical compositions comprising such compounds, and methods for using such compounds and compositions are described herein.

  阿扎环状类固醇组胺-3受体配体、包含该化合物的药物组合物以及使用这些化合物和组合物的方法在本文件中进行了描述。
• [EN] AZACYCLOSTEROID HISTAMINE-3 RECEPTOR LIGANDS<br/>[FR] LIGANDS DE RECEPTEUR H3 DE L'HISTAMINE AZACYCLOSTEROIDE
  申请人：ABBOTT LAB

  公开号：WO2005100377A1

  公开（公告）日：2005-10-27

  Azacyclosteroid histamine-3 receptor ligands, pharmaceutical compositions comprising such compounds, and methods for using such compounds and compositions are described herein.

  阿扎环状类固醇组胺-3受体配体、包含该化合物的药物组合物以及使用这些化合物和组合物的方法在本文件中进行了描述。
• Direct Cyclopropanation of α‐Cyano β‐Aryl Alkanes by Light‐Mediated Single Electron Transfer Between Donor–Acceptor Pairs
  作者：Jing Li、Martin J. Lear、Yujiro Hayashi

  DOI：10.1002/chem.202100341

  日期：2021.4

  formal [2+1] addition of carbene or radical based C1 units to alkenes. In contrast, the one‐pot intermolecular cyclopropanation of alkanes by redox active C1 units has remained unrealised. Herein, we achieved this process simply by exposing β‐aryl propionitriles and C1 radical precursors (N‐oxy esters) to base and blue light. The overall process is redox‐neutral and a photocatalyst, whether metal‐ or organic‐based

  传统上，环丙烷是通过将卡宾或基于自由基的C1单元正式加成至烯烃中而制备的[2 + 1]。相比之下，氧化还原活性C1单元对烷烃的单锅分子间环丙烷化作用尚未实现。在此，我们仅通过将β-芳基丙腈和C1自由基前体（N-氧基酯）暴露于碱性和蓝光下即可实现此过程。整个过程是氧化还原中性的，不需要金属或有机基光催化剂。我们的发现支持单电子从丙腈的α-氰基碳负离子向N的单电子转移（SET）蓝酸酯通过其电子给体-受体（EDA）络合物促进了羟氧基酯的合成。这样形成的α-氰基碳自由基会失去一个β-质子，形成一个π共振稳定的自由基阴离子，该阴离子优先在苄基β-位与脱羧的C1自由基单元偶联。这种新的无过渡金属化学物质可耐受富电子和电子不足的（杂）芳基体系，甚至具有硫化物或烯烃官能度，从而提供一系列带有拥挤的四取代季碳的顺-芳基/氰基环丙烷。
• AZACYCLOSTEROID HISTAMINE-3 RECEPTOR LIGANDS
  申请人：Zhao Chen

  公开号：US20080113982A1

  公开（公告）日：2008-05-15

  Azacyclosteroid histamine-3 receptor ligands, pharmaceutical compositions comprising such compounds, and methods for using such compounds and compositions are described herein.

  本文描述了Azacyclosteroid组织胺-3受体配体、包含这些化合物的制药组合物以及使用这些化合物和组合物的方法。
• 273. Derivatives of 6-aminopenicillanic acid. Part II. Trisubstituted acetyl derivatives
  作者：E. G. Brain、F. P. Doyle、K. Hardy、A. A. W. Long、M. D. Mehta、D. Miller、J. H. C. Nayler、M. J. Soulal、E. R. Stove、G. R. Thomas

  DOI：10.1039/jr9620001445

  日期：——