-(3al,7l,7al)-1,2,3,3a,7,7a-hexahydro-6-methyl-7-phenylcyclopent<1,2>oxazine N-oxide | 142840-09-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: -(3al,7l,7al)-1,2,3,3a,7,7a-hexahydro-6-methyl-7-phenylcyclopent<1,2>oxazine N-oxide
• 英文别名: (4RS,4aSR,7aSR)-3-methyl-4-phenyl-4,4a,5,6,7,7a-hexahydrocyclopenta[e][1,2]oxazine 2-oxide；[R,S]-(3al,7l,7al)-1,2,3,3a,7,7a-hexahydro-6-methyl-7-phenylcyclopent[e][1,2]oxazine N-oxide
• CAS: 142840-09-3
• 化学式: C₁₄H₁₇NO₂
• 分子量: 231.294
• InChiKey: SATCWSFSOJSBKI-BFHYXJOUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.86
• 重原子数：
  17.0
• 可旋转键数：
  1.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  35.3
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  -(3al,7l,7al)-1,2,3,3a,7,7a-hexahydro-6-methyl-7-phenylcyclopent<1,2>oxazine N-oxide 在 溶剂黄146 作用下， 以64%的产率得到(3aR*,6aR*)-2-methyl-3-phenyl-3a,5,6,6a-tetrahydro-4H-cyclopenta[b]furan
  参考文献：
  名称：

  使用 Raney® 镍/AcOH 系统将六元环硝基化合物还原脱氮生成密集取代的二氢呋喃

  摘要：

  开发了通过六元环状硝基化合物的还原脱氮/环收缩合成 2,3-二氢呋喃的方案。该工艺利用廉价的 Raney® 镍作为催化剂和化学计量试剂，无需高压设备。产品以高纯度形成，通常不需要柱色谱法。对底物范围、官能团耐受性和机制进行了研究。所开发的方法提供了一种直接的两步从硝基苯乙烯和烯烃制备密集取代的2,3-二氢呋喃的方法。

  DOI：

  10.1002/adsc.202300573
• 作为产物：
  描述：

  1-苯基-2-硝基丙烯 、 环戊烯 在 四氯化锡 作用下， 以 二氯甲烷 为溶剂， 反应 0.75h， 以93%的产率得到-(3al,7l,7al)-1,2,3,3a,7,7a-hexahydro-6-methyl-7-phenylcyclopent<1,2>oxazine N-oxide
  参考文献：
  名称：

  Inter- and intramolecular [4 + 2] cycloadditions of nitroalkenes with olefins. 2-Nitrostyrenes

  摘要：

  Aromatic nitroalkenes 9-12 underwent Lewis acid catalyzed cycloadditions with various cyclic alkenes to afford high yields of nitronates 25-30 with exclusive anti selectivity. Hammett studies helped to further delineate the role of the Lewis acid. Reaction of nitroalkenes 8 and 10 with various cyclic dienes in the presence of a Lewis acid demonstrated the ability of nitroalkenes to behave as dienes in cycloadditions. The major products were the syn diastereomers which arise from an endo-folded transition structure. Finally, intramolecular cycloaddition of 36-39 allowed a correlation between the stereochemical course of the reaction and positions of sp2 centers in the tether to be addressed.

  DOI：

  10.1021/jo00044a029

文献信息

• A General Metal-Assisted Synthesis of α-Halo Oxime Ethers from Nitronates and Nitro Compounds
  作者：Alexey Yu. Sukhorukov、Maria A. Kapatsyna、Tammy Lim Ting Yi、Hyeong Ryool Park、Yana A. Naumovich、Petr A. Zhmurov、Yulia A. Khomutova、Sema L. Ioffe、Vladimir A. Tartakovsky

  DOI：10.1002/ejoc.201403083

  日期：2014.12

  α-halo oxime ethers from readily accessible nitronates and nitro compounds via bis(oxy)enamines is reported. A key step of the strategy involves the unprecedented reaction of bis(oxy)enamines with a metal (Co, Zn, Mg, Mn) halide that acts as both a promoter and halide (Br, I, Cl) source. A variety of cyclic and acyclic ethers of α-halo oximes, including previously unavailable trimethylsilyl ethers of α-iodo

  报道了一种通过双（氧）烯胺从容易获得的硝基化合物和硝基化合物合成 α-卤代肟醚的方法。该策略的一个关键步骤涉及双（氧）烯胺与金属（Co、Zn、Mg、Mn）卤化物的前所未有的反应，该卤化物既作为促进剂又作为卤化物（Br、I、Cl）源。各种 α-卤代肟的环状和非环状醚，包括以前无法获得的 α-碘肟的三甲基甲硅烷基醚，已经以良好到高的产率合成。
• A Convenient Procedure for the Synthesis of 3-Substituted 5,6-Dihydro-4<i>H</i>-1,2-oxazines from Nitroethane
  作者：Alexey Lesiv、Sema Ioffe、Alexey Sukhorukov、Michael Klenov、Pavel Ivashkin、Yulya Khomutova

  DOI：10.1055/s-2006-958930

  日期：2007.1

  A novel and efficient four-step procedure for the synthesis of C-3-functionalised 5,6-dihydro-4H-1,2-oxazines from nitroethane is described. It includes preparation of 3-methyl-substituted six-membered cyclic nitronates, 3-(bromomethyl)-substituted 5,6-dihydro-4H-1,2-oxazines as intermediates, and nucleophilic substitution of bromine. Total yields of the target C-3-functionalised oxazines are 15-30%

  描述了一种从硝基乙烷合成 C-3-官能化 5,6-二氢-4H-1,2-恶嗪的新型高效四步法。包括制备3-甲基取代的六元环状硝酸酯、3-(溴甲基)-取代的5,6-二氢-4H-1,2-恶嗪中间体、溴的亲核取代。来自硝基乙烷的目标 C-3-官能化恶嗪的总产率为 15-30%。
• Nitronate-aryne cycloaddition as a concise route to stereochemically complex fused benzisoxazolines and amino alcohols
  作者：Alexander A. Lukoyanov、Andrey A. Tabolin、Yulia V. Nelyubina、Svetlana A. Aksenova、Alexey Yu. Sukhorukov

  DOI：10.1039/d3ob00235g

  日期：——

  The reaction of cyclic nitronates (isoxazoline N-oxides and 5,6-dihydro-4H-1,2-oxazine N-oxides) with Kobayashi's aryne precursors affords tricyclic benzene-fused nitroso acetals as a result of [3 + 2]-cycloaddition. The process is regio- and stereoselective in most cases and produces the target cycloadducts possessing up to four contiguous stereogenic centers. These nitroso acetals were shown to be

  环状硝酸酯（异恶唑啉N-氧化物和5,6-二氢-4 H -1,2-恶嗪N）的反应-氧化物）与 Kobayashi 的芳炔前体通过 [3 + 2]-环加成反应得到三环苯稠合亚硝基缩醛。在大多数情况下，该过程具有区域选择性和立体选择性，并产生具有多达四个连续立体中心的目标环加合物。通过 N-O 键的催化氢解，这些亚硝基缩醛被证明是有价值的多取代氨基二醇的方便前体。此外，质子酸的作用通过异质 N-O 键断裂和贝克曼型反应导致环状亚硝基缩醛部分异常断裂。使用这种酸介导的反应，完成了迄今为止未知的六氢苯并[4,5]异恶唑并[2,3- a ]氮杂支架的合成。
• Synthesis and characterization of novel 1,2-oxazine-based small molecules that targets acetylcholinesterase
  作者：Alexey Yu. Sukhorukov、Anilkumar C. Nirvanappa、Jagadish Swamy、Sema L. Ioffe、Shivananju Nanjunda Swamy、Basappa、Kanchugarakoppal S. Rangappa

  DOI：10.1016/j.bmcl.2014.05.040

  日期：2014.8

  Thirteen 2-oxazine-based small molecules were synthesized targeting 5-lipoxygenase (LOX), and acetylcholinesterase (AChE). The test revealed that the newly synthesized compounds had potent inhibition towards both 5-LOX and AChE in lower micro molar concentration. Among the tested compounds, the most active compound, 2-[(2-acetyl-6,6-dimethy1-4-phenyl-5,6-dihydro-2H-1,2-oxazin-3-yl)methyl]-1H-isoindole-1,3(2H)-dione (2a) showed inhibitory activity towards 5-LOX and AChE with an IC50 values of 1.88, and 2.5 mu M, respectively. Further, the in silico molecular docking studies revealed that the compound 2a bound to the catalytic domain of AChE strongly with a highest CDOCKER score of -1.18 kcal/mol when compared to other compounds of the same series. Additionally, 2a showed a good lipophilicity (logP = 2.66), suggesting a potential ability to penetrate the blood-brain-barrier. These initial pharmacological data revealed that the compound 2a could serve as a drug-seed in developing anti-Alzheimer's agents. (C) 2014 Elsevier Ltd. All rights reserved.