Pyrrolo[1,2‐
<i>a</i>
]quinoxalines: Insulin Mimetics that Exhibit Potent and Selective Inhibition against Protein Tyrosine Phosphatase 1B
作者:Javier García‐Marín、Mercedes Griera、Patricia Sánchez‐Alonso、Bruno Di Geronimo、Francisco Mendicuti、Manuel Rodríguez‐Puyol、Ramón Alajarín、Beatriz Pascual‐Teresa、Juan J. Vaquero、Diego Rodríguez‐Puyol
DOI:10.1002/cmdc.202000446
日期:2020.10.5
analogues bearing chlorine atoms at C7 and/or C8 kept potency and showed good selectivity compared to TCPTP (selectivity index >40). The most potent inhibitors behaved as insulin mimetics by increasing glucose uptake. The 4‐benzyl derivative inhibited insulin receptor substrate 1 and AKT phosphorylation. Molecular docking and molecular dynamics simulations supported a putative binding mode for these compounds
Green palladium-catalyzed nitroarene/nitrile reductive cross-annulation chemistry that facilitates straightforward access to pyrrolo[1,2-a]quinoxaline derivatives is described herein. A range of nitriles are activated as carbon synthons to form intramolecular CN and CC bonds using this chemistry. The synthetic protocol has the advantages of broad substrate scope, excellent functional group tolerance
本文描述了绿色钯催化的硝基芳烃/腈还原交叉环化化学,它有助于直接获得吡咯并 [1,2-a] 喹喔啉衍生物。使用这种化学方法,一系列腈被激活为碳合成子,形成分子内 C N 和 C C 键。该合成方案具有广泛的底物范围、优异的官能团耐受性以及使用环保水和廉价的 HCOONa/HCOOH 分别作为溶剂和氢供体的优点。该催化剂可方便地通过过滤回收,至少可以重复使用五次而不会出现明显的失活。这项研究为将散装化学基序转化为增值功能框架提供了一个重要平台。
Crafting mono- and novel bis-methylated pyrroloquinoxaline derivatives from a shared precursor and its application in the total synthesis of marinoquinoline A
The synthesis of mono- and novel bis-methylated pyrrolo[1,2-a]quinoxalines through the addition of unstable methyl radicals to aryl isocyanides is described contingent upon the reaction conditions employed. The strategy has been effectively employed in the total synthesis of the natural product marinoquinoline A.
描述了根据所采用的反应条件,通过将不稳定的甲基自由基加成至芳基异氰化物来合成单甲基化和新型双甲基化吡咯并[1,2- a ]喹喔啉。该策略已有效地应用于天然产物马林喹啉A的全合成。
作者:Zhiguo Zhang、Junlong Li、Guisheng Zhang、Nana Ma、Qingfeng Liu、Tongxin Liu
DOI:10.1021/acs.joc.5b00915
日期:2015.7.2
An efficient and convenient iron-catalyzed protocol has been developed for the synthesis of substituted pyrrolo[1,2-a]quinoxalines from 1-(N-arylpyrrol-2-yl)ethanone O-acetyl oximes through N-O bond cleavage and intramolecular directed C-H arylation reactions in acetic acid.
Pyridazino-pyrrolo-quinoxalinium salts as highly potent and selective leishmanicidal agents targeting trypanothione reductase
作者:Héctor de Lucio、Javier García-Marín、Patricia Sánchez-Alonso、Juan Carlos García-Soriano、Miguel Ángel Toro、Juan J. Vaquero、Federico Gago、Ramón Alajarín、Antonio Jiménez-Ruiz