[EN] QUINOXALINE DERIVATIVES AS MODULATORS OF THE GLUCOCORTICOID RECEPTOR [FR] DÉRIVÉS DE QUINOXALINE EN TANT QUE MODULATEURS DU RÉCEPTEUR DES GLUCOCORTICOÏDES
[EN] QUINOXALINE DERIVATIVES AS MODULATORS OF THE GLUCOCORTICOID RECEPTOR [FR] DÉRIVÉS DE QUINOXALINE EN TANT QUE MODULATEURS DU RÉCEPTEUR DES GLUCOCORTICOÏDES
Diversity-Oriented Synthesis as a Strategy for Fragment Evolution against GSK3β
作者:Yikai Wang、Jean-Yves Wach、Patrick Sheehan、Cheng Zhong、Chenyang Zhan、Richard Harris、Steven C. Almo、Joshua Bishop、Stephen J. Haggarty、Alexander Ramek、Kayla N. Berry、Conor O’Herin、Angela N. Koehler、Alvin W. Hung、Damian W. Young
DOI:10.1021/acsmedchemlett.6b00230
日期:2016.9.8
fragment-based drug discovery (FBDD) relies heavily on structural analysis of the hits bound to their targets. Herein, we present a complementary approach based on diversity-oriented synthesis (DOS). A DOS-based fragment collection was able to produce initial hit compounds against the target GSK3β, allow the systematic synthesis of related fragment analogues to explore fragment-level structure–activity relationship
Practical synthesis of 3,3-substituted dihydroquinoxalin-2-ones from aryl 1,2-diamines using the Bargellini reaction
作者:Thomas A. Alanine、Stephen Stokes、James S. Scott
DOI:10.1016/j.tetlet.2016.08.057
日期:2016.9
The reaction of aromatic 1,2-diamines with trichloromethylcarbinols under mild, basic phase-transfer conditions provided expedient access to 3,3-disubsituted quinoxalin-2(1H)-ones in good to moderate yields. The use of unsymmetrical aryl diamines gave a regioisomeric mixture of products with the ratio shown to be dependent on the electronic nature of the aromatic substituents. 2,3-Diaminopyridines
在温和的碱性相转移条件下,芳族1,2-二胺与三氯甲基甲醇的反应可方便地获得3,3-二取代的喹喔啉-2(1 H)-酮,收率良好。不对称芳基二胺的使用产生了产物的区域异构混合物,其比例显示出取决于芳族取代基的电子性质。也可以使用2,3-二氨基吡啶,其对二氢[3,2 - b ]吡啶并吡嗪-2-酮异构体表现出优异的选择性。
Palladium-catalyzed synthesis of quinoxaline derivatives
作者:Jeffery M. Wallace、Björn C.G. Söderberg、Joaquín Tamariz、Novruz G. Akhmedov、Mathew T. Hurley
DOI:10.1016/j.tet.2008.07.083
日期:2008.10
A palladium-catalyzed reductive N-heteroannulation of enamines derived from 2-nitrobenzenamines forming mixtures of 1,2-dihydroquinoxalines and 3,4-dihydroquinoxalin-2-ones is described. The reactions are performed using bis(dibenzylideneacetone)palladium(0), 1,3-bis(diphenylphosphino)propane, and 1,10-phenanthroline in DMF under 6 atm of carbon monoxide at 70 degrees C. (C) 2008 Elsevier Ltd. All rights reserved.
A Novel Palladium-Catalyzed Synthesis of 1,2-Dihydroquinoxalines and 3,4-Dihydroquinoxalinones
作者:Björn C. G. Söderberg、Jeffery M. Wallace、Joaquín Tamariz
DOI:10.1021/ol025640g
日期:2002.4.1
[GRAPHICS]Reactions of enamines, derived from 2-nitroanilines and alpha-substituted aldehydes, with carbon monoxide (6 atm) in the presence of a catalytic amount of bis(dibenzylideneacetone)palladium(0) (Pd(dba)(2)) and 1,3-bis(diphenylphosphino)propane (dppp) afford readily separated mixtures of 1,2-dihydroquinoxalines and 3,4-dihydroquinoxalinones. Addition of a catalytic amount of 1,10-phenanthroline to the reaction mixture substantially improved the yield of products.