2-methyl-6-phenylpyridine 1-oxide | 20531-89-9

• 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: 2-methyl-6-phenylpyridine 1-oxide
• 英文别名: 2-methyl-6-phenylpyridine N-oxide；2-phenyl-6-methylpyridine N-oxide；6-methyl-2-phenylpyridine N-oxide；2-phenyl-6-methyl-pyridine-N-oxide；2-methyl-1-oxido-6-phenylpyridin-1-ium
• CAS: 20531-89-9
• 化学式: C₁₂H₁₁NO
• 分子量: 185.225
• InChiKey: ZGLYSZZINMAOFG-UHFFFAOYSA-N

物化性质

• 熔点：
  118-119 °C
• 沸点：
  397.0±11.0 °C(Predicted)
• 密度：
  1.05±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  25.5
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2-methyl-6-phenylpyridine 1-oxide 在 sodium hydroxide 作用下， 以 甲醇 为溶剂， 反应 2.5h， 生成 6-苯基-2-吡啶甲醇
  参考文献：
  名称：

  烷基和2-苯乙基1,4-二氢-2,6-二甲基-3-硝基-4-（3-或6-取代的-2-吡啶基）-5-吡啶羧酸酯的合成，旋转异构体取向和钙通道调节活性。

  摘要：

  制备了一组外消旋的烷基和2-苯乙基的1,4-二氢-2,6-二甲基-3-硝基-4-（3-或6-取代的-2-吡啶基）-5-吡啶羧酸酯（13a-q）使用改良的Hantzsch反应，该反应涉及将3-或6-取代的2-吡啶甲醛（7a-j）与3-氨基巴豆酸烷基酯或2-苯乙基丁烯酸酯（11a-d）和硝基丙酮（12）缩合。核Overhauser（NOE）研究表明，溶液中存在大量的旋转异构体，无论取代基是位于3位还是6位，吡啶氮原子都位于1,4-二氢吡啶环上方。吡啶基氮自由电子对与适当定位的1,4-二氢吡啶NH部分之间的潜在H键相互作用可稳定该旋转异构体的取向。分别使用豚鼠回肠纵向平滑肌（GPILSM）和豚鼠左心房（GPLA）测定来确定体外钙通道拮抗剂和激动剂活性。具有i-Pr酯取代基的化合物可作为双重心脏选择性钙通道激动剂（GPLA）/平滑肌选择性钙通道拮抗剂（GPILSM），但对C-4 3-硝基-2-吡啶基化合物表现出拮抗作用的C-4

  DOI：

  10.1021/jm970529f
• 作为产物：
  描述：

  2-溴-6-甲基吡啶 在 四(三苯基膦)钯 、 sodium carbonate 、 间氯过氧苯甲酸 作用下， 以 氯仿 、 水 、 甲苯 为溶剂， 反应 5.0h， 生成 2-methyl-6-phenylpyridine 1-oxide
  参考文献：
  名称：

  Inhibition of 1-Deoxy-d-Xylulose-5-Phosphate Reductoisomerase by Lipophilic Phosphonates: SAR, QSAR, and Crystallographic Studies

  摘要：

  1-Deoxy-D-xylulose-5-phosphate reductoisomerase (DXR) is a novel target for developing new antibacterial (including antituberculosis) and antimalaria drugs. Forty-one lipophilic phosphonates, representing a new class of DXR inhibitors, were synthesized, among which 5-phenylpyridin-2-ylmethylphosphonic acid possesses the most activity against E. coli DXR (EcDXR) with a K-i of 420 nM. Structure-activity relationships (SAR) are discussed, which can be rationalized using our EcDXR:inhibitor structures, and a predictive quantitative SAR (QSAR) model is also developed. Since inhibition studies of DXR from Mycobacterium tuberculosis (MtDXR) have not been performed well, 48 EcDXR inhibitors with a broad chemical diversity were found, however, to generally exhibit considerably reduced activity against MtDXR. The crystal structure of a, MtDXR:inhibitor complex reveals the flexible loop containing the residues 198-208 has no strong interactions with the 3,4-dichlorophenyl group of the inhibitor, representing a structural basis for the reduced activity. Overall, these results provide implications in the future design and development of potent DXR inhibitors.

  DOI：

  10.1021/jm200363d

文献信息

• [EN] TRIAZOLE AGONISTS OF THE APJ RECEPTOR<br/>[FR] TRIAZOLES AGONISTES DU RÉCEPTEUR APJ
  申请人：AMGEN INC

  公开号：WO2016187308A1

  公开（公告）日：2016-11-24

  Compounds of Formula I and Formula II, pharmaceutically acceptable salt thereof, stereoisomers of any of the foregoing, or mixtures thereof are agonists of the APJ Receptor and have use in treating cardiovascular and other conditions. Compounds of Formula I and Formula II have the following structures where the definitions of the variables are provided herein.

  公式I和公式II的化合物，其药用盐，上述任何一种的立体异构体，或它们的混合物是APJ受体的激动剂，并可用于治疗心血管和其他疾病。公式I和公式II的化合物具有以下结构，其中变量的定义在此提供。
• Transition-Metal-Free Regioselective Alkylation of Quinoline N-Oxides via Oxidative Alkyl Migration and C−C Bond Cleavage of tert-/sec-Alcohols
  作者：Chiranjit Sen、Subhash C. Ghosh

  DOI：10.1002/adsc.201701330

  日期：2018.3.1

  An unprecedented C2‐alkylation of quinoline N‐oxide derivatives via C−C bond activation of tert‐ and sec‐alkyl alcohol is described using hypervalent iodine (III) reagent PhI(OAc)2 (PIDA). This regioselective alkylation using mild hypervalent iodine reagents is more practical, operationally simple and transition metal free. The reaction proceeds efficiently with a broad range of substrates including

  喹啉N-氧化物衍生物的前所未有的C2烷基化通过C-C键活化的叔和仲烷基醇是使用高价碘（III）试剂岛（OAC）描述2（PIDA）。使用温和的高价碘试剂进行的区域选择性烷基化反应更加实用，操作简单且不含过渡金属。使用多种叔/秒醇，反应可在多种底物（包括喹啉，异喹啉和吡啶N-氧化物）上有效地进行。从实验结果来看，我们还提出了一种由PIDA调解的合理化机制。
• A General Method for Copper-Catalyzed Arylation of Arene C−H Bonds
  作者：Hien-Quang Do、Rana M. Kashif Khan、Olafs Daugulis

  DOI：10.1021/ja805688p

  日期：2008.11.12

  A general method for copper-catalyzed arylation of sp (2) C-H bonds with p K a's below 35 has been developed. The method employs aryl halide as the coupling partner, lithium alkoxide or K 3PO 4 base, and DMF, DMPU, or mixed DMF/xylenes solvent. A variety of electron-rich and electron-poor heterocycles such as azoles, caffeine, thiophenes, benzofuran, pyridine oxides, pyridazine, and pyrimidine can

  已经开发出一种铜催化 pKa 低于 35 的 sp (2) CH 键芳基化的通用方法。该方法采用芳基卤作为偶联配偶体、锂醇盐或K 3PO 4 碱以及DMF、DMPU或混合DMF/二甲苯溶剂。多种富电子和缺电子杂环，例如唑类、咖啡因、噻吩、苯并呋喃、氧化吡啶、哒嗪和嘧啶可以芳基化。此外，在苯环上具有至少两个吸电子基团的贫电子芳烃也可以被芳基化。独立合成了两种芳基铜-菲咯啉络合物中间体。
• Pd(II)-catalyzed monoarylation of 2-phenylpyridine <i>N</i>-oxide with iodobenzene in water
  作者：Wei Zhang、Zhengkai Li、Yihan Zhang、Li Yang、Xiangge Zhou

  DOI：10.1080/00397911.2017.1285937

  日期：2017.4.18

  ABSTRACT A Pd(II)-catalyzed activation and arylation of C(sp2)–H bond directed by pyridine N-oxide in water is achieved with high regioselectivity to form monoarylated products in yields up to 91%. The wide substrate scope highlights the flexibility of the catalyst. The reaction mechanism was proposed and the application of this method was taken as an example by the synthesis of COX-2 inhibitor analog

  摘要：Pd(II) 催化的 C(sp2)-H 键在水中由吡啶 N-氧化物引导的活化和芳基化，以高区域选择性形成单芳基化产物，产率高达 91%。广泛的底物范围突出了催化剂的灵活性。提出了反应机理，并以COX-2抑制剂类似物的合成为例说明了该方法的应用。图形概要
• COPPER-CATALYZED C-H BOND ARYLATION
  申请人：Daugulis Olafs

  公开号：US20090076266A1

  公开（公告）日：2009-03-19

  The present invention is a one-step method for efficiently converting carbon-hydrogen bonds into carbon-carbon bonds using a combination of aryl halides, a substrate, and a copper salt as catalyst. This method allows faster introduction of complex molecular entities, a process that would otherwise require many more steps. This invention is particularly relevant for the organic synthesis of complex molecules such as, but not limited to, pharmacophores and explosives.

  本发明是一种一步法，通过使用芳基卤化物、底物和铜盐作为催化剂，高效地将碳氢键转化为碳碳键的方法。该方法允许更快地引入复杂的分子实体，否则这个过程需要更多步骤。该发明特别适用于有机合成中复杂分子的合成，例如药用分子和爆炸物等。

表征谱图