(S)-4-methylamino-3-pivaloyloxymethyloxy-4,5,6,7-tetrahydrobenzo[d]isoxazole | 182317-66-4

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: (S)-4-methylamino-3-pivaloyloxymethyloxy-4,5,6,7-tetrahydrobenzo[d]isoxazole
• 英文别名: (S)-(-)-4-(methylamino)-3-[(pivaloyloxy)methyloxy]-4,5,6,7-tetrahydro-1,2-benzisoxazole；[(4S)-4-(methylamino)-4,5,6,7-tetrahydro-1,2-benzoxazol-3-yl]oxymethyl 2,2-dimethylpropanoate
• CAS: 182317-66-4
• 化学式: C₁₄H₂₂N₂O₄
• 分子量: 282.34
• InChiKey: IUASSYDNPFIYAT-VIFPVBQESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  20
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.71
• 拓扑面积：
  73.6
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  1,1-bis(3-methyl-2-thienyl)but-1-en-4-yl methanesulfonate 、 (S)-4-methylamino-3-pivaloyloxymethyloxy-4,5,6,7-tetrahydrobenzo[d]isoxazole 在 lithium carbonate 作用下， 以 醋酸异丙酯 为溶剂， 反应 24.0h， 以68%的产率得到(S)-4-[N-[1,1-bis(3-methyl-2-thienyl)but-1-en-4-yl]-N-methylamino]-3-pivaloyloxymethyloxy-4,5,6,7-tetrahydrobenzo[d]isoxazole
  参考文献：
  名称：

  Selective inhibitors of GABA uptake: synthesis and molecular pharmacology of 4-N-methylamino-4,5,6,7-tetrahydrobenzo[d]isoxazol-3-ol analogues

  摘要：

  A series of lipophilic diaromatic derivatives of the glia-selective GABA uptake inhibitor (R)-4-amino-4,5,6,7-tetrahydrobenzo[d]isoxazol-3-ol [(R)-exo-THPO, 4] were synthesized via reductive amination of 3-ethoxy-4,5,6,7-tetrahydrobenzo[d]isoxazol-4-one (9) or via N-alkylation of O-alkylatedracemic 4. The effects of the target compounds on GABA uptake mechanisms in vitro were measured using a rat brain synaptosomal preparation or primary cultures of mouse cortical neurons and glia cells (astrocytes), as well as HEK cells transfected with cloned mouse GABA transporter subtypes (GAT1-4). The activity against isoniazid-induced convulsions in mice after subcutaneous administration of the compounds was determined. All of the compounds were potent inhibitors of synaptosomal uptake the most potent compound being (RS)-4-[N-(1,1-diphenylbut-1-4-en-yl)amino]-4,5,6,7-tetrahydrobenzo[d]isoxazol-3-ol (17a, IC50 = 0.14 muM). The majority of the compounds showed a weak preference for glial, as compared to neuronal, GABA uptake. The highest degree of selectivity was 10-fold corresponding to the glia selectivity of (R)-N-methyl-exo-THPO (5). All derivatives showed a preference for the GAT1 transporter, as compared with GAT2-4, with the exception of (RS)-4-[N-[1,1-bis(3-methyl-2-thienyl)but-1-en-4-yl]-N-methylamino]-4,5,6,7-tetrahydrobenzo[d]isoxazol-3-ol (28d), which quite surprisingly turned out to be more potent than GABA at both GAT1 and GAT2 subtypes. The GAT1 activity was shown to reside in (R)-28d whereas (R)-28d and (S)-28d contributed equally to GAT2 activity. This makes (S)-28d a GAT2 selective compound, and (R)-28d equally effective in inhibition of GAT1 and GAT2 mediated GABA transport. All compounds tested were effective as anticonvulsant reflecting that these compounds have blood-brain barrier permeating ability. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2004.10.029
• 作为产物：
  描述：

  3-ethoxy-4,5,6,7-tetrahydro-1,2-benzisoxazol-4-one 在 sodium hydroxide 、 3 A molecular sieve 、 potassium tert-butylate 、 氢溴酸 、 三乙基硼氢化锂 、 sodium cyanoborohydride 、 溶剂黄146 、 三乙胺 、 三氟乙酸 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 甲醇 、 乙醇 、 二氯甲烷 、 丙酮 为溶剂， 反应 24.5h， 生成 (S)-4-methylamino-3-pivaloyloxymethyloxy-4,5,6,7-tetrahydrobenzo[d]isoxazole
  参考文献：
  名称：

  神经胶质GABA摄取的选择性抑制剂：3-羟基-4-氨基-4,5,6,7-四氢-1,2-苯并恶唑（exo-THPO）和类似物的对映异构体的合成，绝对立体化学和药理作用。

  摘要：

  3-甲氧基-4,5,6,7-四氢-1,2-苯并恶唑-4-酮（20a）或相应的3-乙氧基类似物（20b）和3-氯-4,5,6,7 -四氢-1,2-苯并噻唑-4（51）是通过区域选择性铬酸氧化相应的双环四氢苯（19a，b和50）合成的，它们用作合成目标两性离子3-异恶唑的关键中间体8-15和3-异噻唑16和17。这些反应序列涉及不同的还原过程。鉴于（RS）-4-氨基-3-羟基-4,5,6,7-四氢-1,2-苯并恶唑（8，exo-THPO）是通过肟22a或22b的铝汞齐还原合成的，化合物9通过还原胺化获得11-13和15-17。通过N-Boc保护的伯胺25的N-乙基化合成化合物10。通过由伯胺23b和（R）-α-甲氧基苯基乙酰氯合成并随后通过制备型HPLC分离的非对映酰胺32和33，以高对映体纯度（ee≥99.1％）获得8的对映体。由仲胺27类似地制备9的对映异构体。基于X射线晶体学分析，肟22a的构型显示为E，（-）-8

  DOI：

  10.1021/jm9904452

文献信息

• Selective Inhibitors of Glial GABA Uptake:  Synthesis, Absolute Stereochemistry, and Pharmacology of the Enantiomers of 3-Hydroxy-4-amino-4,5,6,7-tetrahydro-1,2-benzisoxazole (<i>exo</i>-THPO) and Analogues
  作者：Erik Falch、Jens Perregaard、Bente Frølund、Birgitte Søkilde、Anders Buur、Lene M. Hansen、Karla Frydenvang、Lotte Brehm、Tina Bolvig、Orla M. Larsson、Connie Sanchez、Harold S. White、Arne Schousboe、Povl Krogsgaard-Larsen

  DOI：10.1021/jm9904452

  日期：1999.12.1

  was more pronounced for 9, which showed IC(50) values of 40 and 500 microM as an inhibitor of glial and neuronal GABA uptake, respectively. These effects of 8 and 9 proved to be enantioselective, (R)-(-)-8 and (R)-(+)-9 being the active inhibitors of both uptake systems. The selectivity of 9 as a glial GABA uptake inhibitor was largely lost by replacing the N-methyl group of 9 by an ethyl group, compound

  3-甲氧基-4,5,6,7-四氢-1,2-苯并恶唑-4-酮（20a）或相应的3-乙氧基类似物（20b）和3-氯-4,5,6,7 -四氢-1,2-苯并噻唑-4（51）是通过区域选择性铬酸氧化相应的双环四氢苯（19a，b和50）合成的，它们用作合成目标两性离子3-异恶唑的关键中间体8-15和3-异噻唑16和17。这些反应序列涉及不同的还原过程。鉴于（RS）-4-氨基-3-羟基-4,5,6,7-四氢-1,2-苯并恶唑（8，exo-THPO）是通过肟22a或22b的铝汞齐还原合成的，化合物9通过还原胺化获得11-13和15-17。通过N-Boc保护的伯胺25的N-乙基化合成化合物10。通过由伯胺23b和（R）-α-甲氧基苯基乙酰氯合成并随后通过制备型HPLC分离的非对映酰胺32和33，以高对映体纯度（ee≥99.1％）获得8的对映体。由仲胺27类似地制备9的对映异构体。基于X射线晶体学分析，肟22a的构型显示为E，（-）-8
• Selective inhibitors of GABA uptake: synthesis and molecular pharmacology of 4-N-methylamino-4,5,6,7-tetrahydrobenzo[d]isoxazol-3-ol analogues
  作者：Rasmus P. Clausen、Ejner K. Moltzen、Jens Perregaard、Sibylle M. Lenz、Connie Sanchez、Erik Falch、Bente Frølund、Tina Bolvig、Alan Sarup、Orla M. Larsson、Arne Schousboe、Povl Krogsgaard-Larsen

  DOI：10.1016/j.bmc.2004.10.029

  日期：2005.2

  A series of lipophilic diaromatic derivatives of the glia-selective GABA uptake inhibitor (R)-4-amino-4,5,6,7-tetrahydrobenzo[d]isoxazol-3-ol [(R)-exo-THPO, 4] were synthesized via reductive amination of 3-ethoxy-4,5,6,7-tetrahydrobenzo[d]isoxazol-4-one (9) or via N-alkylation of O-alkylatedracemic 4. The effects of the target compounds on GABA uptake mechanisms in vitro were measured using a rat brain synaptosomal preparation or primary cultures of mouse cortical neurons and glia cells (astrocytes), as well as HEK cells transfected with cloned mouse GABA transporter subtypes (GAT1-4). The activity against isoniazid-induced convulsions in mice after subcutaneous administration of the compounds was determined. All of the compounds were potent inhibitors of synaptosomal uptake the most potent compound being (RS)-4-[N-(1,1-diphenylbut-1-4-en-yl)amino]-4,5,6,7-tetrahydrobenzo[d]isoxazol-3-ol (17a, IC50 = 0.14 muM). The majority of the compounds showed a weak preference for glial, as compared to neuronal, GABA uptake. The highest degree of selectivity was 10-fold corresponding to the glia selectivity of (R)-N-methyl-exo-THPO (5). All derivatives showed a preference for the GAT1 transporter, as compared with GAT2-4, with the exception of (RS)-4-[N-[1,1-bis(3-methyl-2-thienyl)but-1-en-4-yl]-N-methylamino]-4,5,6,7-tetrahydrobenzo[d]isoxazol-3-ol (28d), which quite surprisingly turned out to be more potent than GABA at both GAT1 and GAT2 subtypes. The GAT1 activity was shown to reside in (R)-28d whereas (R)-28d and (S)-28d contributed equally to GAT2 activity. This makes (S)-28d a GAT2 selective compound, and (R)-28d equally effective in inhibition of GAT1 and GAT2 mediated GABA transport. All compounds tested were effective as anticonvulsant reflecting that these compounds have blood-brain barrier permeating ability. (C) 2004 Elsevier Ltd. All rights reserved.