6-methoxy-9H-pyrido[2,3-b]indole | 78750-82-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吲哚及其衍生物
• 英文名称: 6-methoxy-9H-pyrido[2,3-b]indole
• CAS: 78750-82-0
• 化学式: C₁₂H₁₀N₂O
• mdl: MFCD00838022
• 分子量: 198.224
• InChiKey: PHVMCIUJCPLLQN-UHFFFAOYSA-N

物化性质

• 熔点：
  220-222 °C
• 沸点：
  407.5±25.0 °C(Predicted)
• 密度：
  1.293±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  15
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.083
• 拓扑面积：
  37.9
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  6-methoxy-9H-pyrido[2,3-b]indole 在 N-溴代丁二酰亚胺(NBS) 、 三溴化硼 、 溶剂黄146 作用下， 生成 3,5,7-tribromo-9H-pyrido[2,3-b]indol-6-ol
  参考文献：
  名称：

  Structure-activity relationship of bromoeudistomin D, a powerful Ca2+ releaser in skeletal muscle sarcoplasmic reticulum

  摘要：

  Bromoeudistomin D and 9-methyl-7-bromoeudistomin D which have a beta-carboline skeleton are powerful Ca2+ releasers from skeletal muscle sarcoplasmic reticulum exhibiting caffeine-like properties. We examined the effects of bromoeudistomin D analogues on Ca(2+)-induced Ca2+ release from skeletal muscle sarcoplasmic reticulum. Among bromoeudistomin D analogues, the Ca(2+)-releasing activities of carboline derivatives were higher than those of carbazole derivatives, suggesting that a carboline skeleton is significantly important for the manifestation of Ca(2+)-releasing activity and Ca2+ sensitivity of Ca(2+)-induced Ca2+ release. On the contrary, the analogues which have a carbazole skeleton and bromine at C-6 inhibit both Ca(2+)- and caffeine-induced Ca2+ release. 9-Methyl-substitution of the analogue elevated its Ca(2+)-releasing activity. Moreover, there is a close correlation between the enhancement of [3H]ryanodine binding to sarcoplasmic reticulum by the analogues and the activation of Ca2+ release by them. Bromoudistomin D analogues may provide valuable information about the structure-function relationship of the ryanodine receptor/Ca2+ release channels in skeletal muscle sarcoplasmic reticulum.

  DOI：

  10.1016/0922-4106(95)90040-3
• 作为产物：
  描述：

  3-溴-2-氯吡啶 在 silver hexafluoroantimonate 、 四(三苯基膦)钯 、 bis[dichloro(pentamethylcyclopentadienyl)iridium(III)] 、 hydrazine hydrate 、 potassium carbonate 、 溶剂黄146 、 sodium nitrite 作用下， 以 1,4-二氧六环 、 乙二醇二甲醚 、 水 、 苯 为溶剂， 反应 50.5h， 生成 6-methoxy-9H-pyrido[2,3-b]indole
  参考文献：
  名称：

  1,2,3,4-四唑通过电环化的 Ir 催化分子内环化/C(sp2)-H 胺化

  摘要：

  描述了一种对含有 C8 取代芳烃、杂芳烃和烯烃的 1,2,3,4-四唑进行分子内脱氮环化/C(sp2)-H 胺化的有效策略。该过程涉及通过 [Cp*IrCl2]2 和 AgSbF6 的组合从四唑生成金属-氮烯中间体。已经表明该反应通过前所未有的电环化过程进行。该方法已成功应用于合成各种 α-咔啉和 7-氮杂吲哚。

  DOI：

  10.1021/jacs.8b05343

文献信息

• Synthesis of α-Carbolines Starting from 2,3-Dichloropyridines and Substituted Anilines
  作者：Steven Hostyn、Gitte Van Baelen、Guy L. F. Lemière、Bert U. W. Maes

  DOI：10.1002/adsc.200800077

  日期：2008.11.3

  9H-α-Carbolines have been prepared via consecutive intermolecular Buchwald–Hartwig reaction and Pd-catalyzed intramolecular direct arylation from commercially available 2,3-dichloropyridines and substituted anilines. The combination of a high reaction temperature (180 °C) and the use of DBU were found to be crucial for the intramolecular direct arylation reactions of the 3-chloro-N-phenylpyridin-2-amines

  通过连续的分子间布赫瓦尔德-哈特维格反应和Pd催化的分子内直接芳基化反应，从市售的2,3-二氯吡啶和取代的苯胺制备了9 H -α-咔啉。发现高反应温度（180°C）和DBU的使用对于3-氯-N-苯基吡啶-2-胺的分子内直接芳基化反应至关重要，因为在120°C时未观察到反应180°C使用不同的无机碱和其他有机碱。另一方面，这些底物的氮甲基化吡啶类似物 N- [3-氯-1-甲基吡啶-2（1 H）-亚烷基]苯胺}在120°C时确实发生了K 3 PO闭环以4为碱，以良好的收率得到各自的1-甲基-1 H -α-咔啉。
• One-Pot Synthesis of α-Carbolines via Sequential Palladium-Catalyzed Aryl Amination and Intramolecular Arylation
  作者：Joydev K. Laha、Philip Petrou、Gregory D. Cuny

  DOI：10.1021/jo802776m

  日期：2009.4.17

  A one-pot synthesis of α-carbolines via a palladium-catalyzed aryl amination followed by intramolecular arylation is described. 2,3-Dichloro- and 2,3-dibromopyridines have been shown to react with readily available anilines to obtain various substituted α-carbolines in moderate to excellent yields.

  描述了通过钯催化的芳基胺化然后分子内芳基化的一锅法合成α-咔啉。已经表明2，3-二氯和2，3-二溴吡啶与容易获得的苯胺反应，以中等至优异的产率获得各种取代的α-咔啉。
• An iron(<scp>ii</scp>)-based metalloradical system for intramolecular amination of C(sp²)–H and C(sp³)–H bonds: synthetic applications and mechanistic studies
  作者：Sandip Kumar Das、Subrata Das、Supratim Ghosh、Satyajit Roy、Monika Pareek、Brindaban Roy、Raghavan B. Sunoj、Buddhadeb Chattopadhyay

  DOI：10.1039/d2sc03505g

  日期：——

  A catalytic system for intramolecular C(sp2)–H and C(sp3)–H amination of substituted tetrazolopyridines has been successfully developed. The amination reactions are developed using an iron-porphyrin based catalytic system. It has been demonstrated that the same iron-porphyrin based catalytic system efficiently activates both the C(sp2)–H and C(sp3)–H bonds of the tetrazole as well as azide-featuring

  成功开发了取代四唑并吡啶的分子内C(sp 2 )-H 和C(sp 3 )-H 胺化催化体系。胺化反应是使用基于铁卟啉的催化体系进行的。已经证明，相同的基于铁卟啉的催化系统可以有效地激活 C(sp 2 )-H 和 C(sp 3)–四唑的 H 键以及具有高区域选择性的叠氮化物底物。该方法表现出优异的官能团耐受性。该方法提供了三种不同类别的高价值 N-杂环支架。已经进行了许多重要的后期 C-H 胺化来获得重要的分子类别。详细研究（实验和计算）表明 C(sp 2 )–H 和 C(sp 3)–H 胺化反应涉及金属自由基活化机制，这与先前报道的电环化机制不同。总的来说，本研究报告了使用贱金属催化剂发现了一类新的金属自由基活化模式，该模式应在药物化学、药物发现和工业应用的背景下得到广泛应用。
• A New Route to α-Carbolines Based on 6π-Electrocyclization of Indole-3-alkenyl Oximes
  作者：Sophie J. Markey、William Lewis、Christopher J. Moody

  DOI：10.1021/ol403191k

  日期：2013.12.20

  Indoles are converted into alpha-carbolines in four steps by acylation at C-3, Boc-protection, olefination of the resulting 3-indolylaldehydes or ketones to give N-Boc-3-indolyl alkenyl oxime O-methyl ethers, which upon heating to 240 degrees C under microwave irradiation undergo loss of the Boc-group, and 6 pi-electrocyclization to alpha-carbolines, following aromatization by loss of methanol (11 examples, 30-90% yield).
• Synthesis of α-Carboline
  作者：Linli He

  DOI：10.15227/orgsyn.093.0272

  日期：——