1-oxyl-2,2,6,6-tetramethyl-1,2,3,6-tetrahydropyridine-4-carbaldehyde | 97188-49-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: 1-oxyl-2,2,6,6-tetramethyl-1,2,3,6-tetrahydropyridine-4-carbaldehyde
• CAS: 97188-49-3
• 化学式: C₁₀H₁₆NO₂
• 分子量: 182.243
• InChiKey: WTNSERQXLWFFHZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  13
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.7
• 拓扑面积：
  21.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-oxyl-2,2,6,6-tetramethyl-1,2,3,6-tetrahydropyridine-4-carbaldehyde 在 盐酸 作用下， 以 乙醇 为溶剂， 反应 0.5h， 以77%的产率得到1-Hydroxy-2,2,6,6-tetramethyl-1,2,3,6-tetrahydro-pyridine-4-carbaldehyde; hydrochloride
  参考文献：
  名称：

  Studies of Structure−Activity Relationship of Nitroxide Free Radicals and Their Precursors as Modifiers Against Oxidative Damage

  摘要：

  The protective effects of stable nitroxides, as well as their hydroxylamine and amine precursors, have been tested in Chinese hamster V79 cells subjected to H2O2 exposure at fixed concentration or exposure to ionizing radiation. Cytotoxicity was evaluated by monitoring the viability of the cells assessed by the clonogenic assay. The compounds tested at fixed concentration varied in terms of ring size, oxidation state, and ring substituents. Electrochemical studies were carried out to measure the redox midpoint potentials. The studies show that in the case of protection against H2O2 exposure, the protection was determined by the ring size, oxidation state, and redox midpoint potentials. In general the protection factors followed the order nitroxides > hydroxylamines > amines. Both the six-membered ring nitroxides and substituted five-membered ring nitroxides were efficient protectors. For six-membered ring nitroxides, the compounds exhibiting the lowest midpoint potentials exhibited maximal protection. In the case of X-radiation, nitroxides were the most protective though some hydroxylamines were also efficient. The amines were in some cases found to sensitize the toxicity of aerobic radiation exposure. The protection observed by the nitroxides was not dependent on the ring size. However, the ring substituents had significant influence on the protection. Compounds containing a basic side chain were found to provide enhanced protection. The results in this study suggest that these compounds are novel antioxidants which can provide cytoprotection in mammalian cells against diverse types of oxidative insult and identify structural determinants optimal for protection against individual types of damage.

  DOI：

  10.1021/jm9802160
• 作为产物：
  描述：

  (carbonic acid-1-oxyl-2,2,6,6-tetramethyl-1,2,5,6-tetrahydropyridine-4-carboxylic acid)anhydride ethyl ester 在 manganese(IV) oxide 、 sodium tetrahydroborate 作用下， 以 四氯化碳 、 乙醇 为溶剂， 反应 1.5h， 生成 1-oxyl-2,2,6,6-tetramethyl-1,2,3,6-tetrahydropyridine-4-carbaldehyde
  参考文献：
  名称：

  Cseko. Jozsef; Hankovszki, Olga H.; Hideg, Kalman, Canadian Journal of Chemistry, 1985, vol. 63, p. 940 - 943

  摘要：

  DOI：

文献信息

• Synthesis of Spin-Labelled 1,4-Dihydropyridines and Pyridines
  作者：Olga H. Hankovszky、Cecilia P. Sár、Kálmán Hideg、Gyula Jerkovich

  DOI：10.1055/s-1991-26389

  日期：——

  1,4-Dihydropyridines spin-labelled with 5- and 6-membered nitroxyl radicals in positions 1-4 of the pyridine ring were synthesized. The oxidation of these dihydropyridines to pyridines with active manganese dioxide was investigated.

  在吡啶环1-4位带有5元和6元氮氧自由基的自旋标记1,4-二氢吡啶被合成。研究了这些二氢吡啶通过活性二氧化锰氧化成吡啶的过程。
• Synthesis and evaluation of paramagnetic caffeic acid phenethyl ester (CAPE) analogs
  作者：Masaki Nagane、Tadashi Yamashita、Patrik Vörös、Tamás Kálai、Kálmán Hideg、Balázs Bognár

  DOI：10.1007/s00706-019-02458-8

  日期：2019.8

  acid phenethyl ester, CAPE) and unnatural (N-acetylcysteine, paramagnetic alcohols) antioxidants. The in vitro antioxidant activity was tested by 2,2′-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) radical scavenging, while assays of cell protection against reactive oxygen species were carried out in the presence of 2′,7′-dichlorofluorescein diacetate and H2O2. Paramagnetic esters without phenol

  摘要已经研究了新制备的含氮氧化物部分作为潜在抗氧化剂的咖啡酸盐的结构-活性关系，并将其与已知的天然（咖啡酸苯乙酯，CAPE）和非天然（N-乙酰半胱氨酸，顺磁性醇）抗氧化剂的结构-活性关系进行了比较。通过2,2'-叠氮基双（3-乙基苯并噻唑啉-6-磺酸）自由基清除测试体外抗氧化活性，同时在2'，7'-二氯荧光素存在下进行细胞对活性氧的保护性测定双乙酸盐和H 2 O 2。没有酚基序的顺磁性酯表现出最低的抗氧化活性，其次是具有中等活性的顺磁性醇。在研究的化合物中，顺磁性酚类化合物是最好的抗氧化剂。由于新的顺磁性CAPE类似物在NIH3T3成纤维细胞中的细胞毒性比10μM时的CAPE小，但具有相似的抗氧化活性，因此可以认为它们是很有前途的抗氧化剂。 图形摘要
• Syntheses and Reactions of Pyrroline, Piperidine Nitroxide Phosphonates
  作者：Mostafa Isbera、Balázs Bognár、József Jekő、Cecilia Sár、Kálmán Hideg、Tamás Kálai

  DOI：10.3390/molecules25102430

  日期：——

  Horner-Wadsworth-Emmons (HWE) reactions. The reaction of paramagnetic α-bromoketone produced a vinylphosphonate in the Perkow reaction. Paramagnetic α-hydroxyphosphonates could be subjected to oxidation, elimination and substitution reactions to produce various paramagnetic phosphonates. The synthesized paramagnetic phosphonates proved to be useful synthetic building blocks for carbon-carbon bond-forming reactions

  有机磷化合物在众多有机化合物中占据重要地位，但已报道的顺磁性磷化合物数量有限，包括顺磁性膦酸盐。本文描述了吡咯啉和哌啶硝基氧膦酸酯的合成和进一步转化，这些方法采用成熟的方法，例如 Pudovik、Arbuzov 和 Horner-Wadsworth-Emmons (HWE) 反应。顺磁性 α-溴酮的反应在 Perkow 反应中产生了乙烯基膦酸酯。顺磁性 α-羟基膦酸酯可以进行氧化、消除和取代反应以产生各种顺磁性膦酸酯。合成的顺磁性膦酸酯被证明是霍纳-沃兹沃思-埃蒙斯烯化反应中碳-碳键形成反应的有用合成构件。获得的不饱和化合物可以转化为各种取代的吡咯啉氮氧化物、proxyl氮氧化物和顺磁性多环芳烃。还筛选了新膦酸盐的 Trolox® 等效抗氧化能力 (TEAC)，叔 α-羟基膦酸盐硝基氧表现出显着的抗氧化活性。
• Syntheses and utilizations of pyrroline and tetrahydropyridine nitroxide-based phosphonate esters, a phosphate ester and a bisphosphonate
  作者：Tamás Kálai、Mostafa Isbera、Balázs Bognár、Cecília Sár、József Jekő、Kálmán Hideg

  DOI：10.1080/10426507.2021.1989685

  日期：2022.6.3

  nitroxide-based allylic phosphonate esters, α-ketophosphonate esters were obtained from the corresponding paramagnetic allyl bromides and acyl chlorides respectively via the Arbuzov reactions. The α-hydroxyphosphonate esters were accessed by Pudovik reactions from the corresponding paramagnetic ketones and aldehydes. The β-ketophosphonate esters were obtained from the appropriate 1-alkynylphosphonate esters via

  摘要 五元和六元环状氮氧化合物基烯丙基膦酸酯、α-酮膦酸酯分别由相应的顺磁性烯丙基溴和酰氯通过 Arbuzov 反应获得。α-羟基膦酸酯通过普多维克反应从相应的顺磁性酮和醛中获得。β-酮膦酸酯由合适的1-炔基膦酸酯通过PdCl 2催化的水合获得。还报道了烯丙基磷酸酯和顺磁性双膦酸盐的合成。
• Synthesis and functional survey of new Tacrine analogs modified with nitroxides or their precursors
  作者：Tamás Kálai、Robin Altman、Izumi Maezawa、Mária Balog、Christophe Morisseau、Jitka Petrlova、Bruce D. Hammock、Lee-Way Jin、James R. Trudell、John C. Voss、Kálmán Hideg

  DOI：10.1016/j.ejmech.2014.03.026

  日期：2014.4

  A series of new Tacrine analogs modified with nitroxides or pre-nitroxides on 9-amino group via methylene or piperazine spacers were synthesized; the nitroxide or its precursors were incorporated into the Tacrine scaffold. The new compounds were tested for their hydroxyl radical and peroxyl radical scavenging ability, acetylcholinesterase inhibitor activity and protection against Aβ-induced cytotoxicity

  合成了一系列新的他克林类似物，通过亚甲基或哌嗪间隔在9-氨基上进行了氮氧化物或前氮氧化物修饰；氮氧化物或其前体被纳入他克林支架。测试了新化合物的羟基自由基和过氧自由基清除能力、乙酰胆碱酯酶抑制剂活性和对 Aβ 诱导的细胞毒性的保护作用。基于这些测定，我们得出结论，通过哌嗪间隔物（9b、9b/HCl和12）与五元和六元氮氧化物连接的他克林类似物表现出最佳活性，为进一步开发具有双重功能的其他候选物（抗阿尔茨海默氏症和抗氧化剂）。