(Z)-ethyl 2,3-methano-5-bromopentanoate | 129920-63-4

• 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: (Z)-ethyl 2,3-methano-5-bromopentanoate
• 英文别名: mesylate；cis-Cyclopropan-1-(2-bromethyl)-2-carbonsaeureethylester；ethyl (1R,2R)-2-(2-bromoethyl)cyclopropane-1-carboxylate
• CAS: 129920-63-4
• 化学式: C₈H₁₃BrO₂
• 分子量: 221.094
• InChiKey: LGXMIMLJMSHXPH-NKWVEPMBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  11
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (Z)-ethyl 2,3-methano-5-bromopentanoate 在 aluminum oxide 、 lithium aluminium tetrahydride 、 氯化铵 、 pyridinium chlorochromate 作用下， 以 乙醚 、 二氯甲烷 、 乙腈 为溶剂， 反应 26.17h， 生成 (Z)-2-amino-3,4-methano-6-(diethylphosphono)hexanenitrile
  参考文献：
  名称：

  Synthesis and biological evaluation of cyclopropyl analogs of 2-amino-5-phosphonopentanoic acid

  摘要：

  A series of cyclopropyl analogues related to 2-amino-5-phosphonopentanoic acid (AP5) were synthesized and their biological activity was assessed as competitive antagonists for the N-methyl-D-aspartate (NMDA) receptor. In vitro receptor binding using [H-3]-L-glutamate as the radioligand provided affinity data, while modulation of [H-3]MK-801 binding was used as a functional assay. The analogues were also evaluated in [H-3]kainate binding to assess selectivity over non-NMDA glutamate receptors. Of the compounds tested, 4,5-methano-AP5 analogue 26 was the most potent selective NMDA antagonist; however, potency was lower than that for [[(+/-)-2-carboxypiperidin-4-yl]methyl]phosphonic acid (CGS 19755, 5).

  DOI：

  10.1021/jm00105a024
• 作为产物：
  描述：

  重氮乙酸乙酯 、 4-溴-1-丁烯 在 copper(II) sulfate 作用下， 以 环己烷 为溶剂， 反应 17.0h， 以33%的产率得到(Z)-ethyl 2,3-methano-5-bromopentanoate
  参考文献：
  名称：

  Synthesis and biological evaluation of cyclopropyl analogs of 2-amino-5-phosphonopentanoic acid

  摘要：

  A series of cyclopropyl analogues related to 2-amino-5-phosphonopentanoic acid (AP5) were synthesized and their biological activity was assessed as competitive antagonists for the N-methyl-D-aspartate (NMDA) receptor. In vitro receptor binding using [H-3]-L-glutamate as the radioligand provided affinity data, while modulation of [H-3]MK-801 binding was used as a functional assay. The analogues were also evaluated in [H-3]kainate binding to assess selectivity over non-NMDA glutamate receptors. Of the compounds tested, 4,5-methano-AP5 analogue 26 was the most potent selective NMDA antagonist; however, potency was lower than that for [[(+/-)-2-carboxypiperidin-4-yl]methyl]phosphonic acid (CGS 19755, 5).

  DOI：

  10.1021/jm00105a024

文献信息

• Barton esters for initiator-free radical cyclisation with heteroaromatic substitution
  作者：Robert Coyle、Karen Fahey、Fawaz Aldabbagh

  DOI：10.1039/c3ob27313j

  日期：——

  first examples of efficient radical cyclisation with (hetero)aromatic substitution via Barton ester intermediates. Cyclopropyl and alkyl radicals allow access to five, six and seven-membered alicyclic-ring fused heterocycles with and without an additional fused cyclopropane, including the skeleton of the anti-cancer agent, cyclopropamitosene, expanded, and diazole analogues. Radical initiators are not

  S-（1-Oxido-2-pyridinyl）-1,1,3,3-tetramethylthiouronium hexafluorophosphate（HOTT）促进了通过Barton酯中间体进行（杂）芳香取代的有效自由基环化的第一个例子。环丙基和烷基可与五个，六个和七元脂环族稠合杂环一起使用，无论是否有其他稠合环丙烷，包括抗癌药环丙烷酰胺的骨架，展开的和 二唑类似物。自由基引发剂是不需要用于从羧酸前体的环化。