[EN] SUBSTITUTED-QUINOXALINE-TYPE BRIDGED-PIPERIDINE COMPOUNDS AND THE USES THEREOF<br/>[FR] COMPOSÉS PIPÉRIDINE À LIAISON ET SUBSTITUÉS PAR UNE QUINOXALINE, ET LEURS UTILISATIONS
申请人:PURDUE PHARMA LP
公开号:WO2010010458A1
公开(公告)日:2010-01-28
The invention relates to Substituted-Quinoxaline-Type Bridged-Piperidine Compounds, compositions comprising an effective amount of a Substituted-Quinoxaline- Type Bridged-Piperidine Compound and methods to treat or prevent a condition, such as pain, comprising administering to an animal in need thereof an effective amount of a Substituted-Quinoxaline-Type Bridged-Piperidine Compound.
This report describes a one-pot synthesis of multisubstituted dihydroquinoxalin-2-ones using an umpolung N-alkylation followed by oxidation and C-alkylation reactions. Moreover, the synthesis of tricyclic compounds containing a dihydroquinoxaline skeleton was carried out by ring closing metathesis (RCM) of the resulting N,C-bis-addition products containing olefins.
Synthesis, EGFR-TK inhibition and anticancer activity of new quinoxaline derivatives
作者:Eman A. Ahmed、Mamdouh F. A. Mohamed、Ahmed Omran、Hanan Salah
DOI:10.1080/00397911.2020.1787448
日期:2020.10.1
13, in fair yield. In addition, the reaction of 4-methyl-3-oxoquinoxaline 3 with some binucleophiles led to a series of new oxoquinoxaline derivatives 14–18. The molecular structure of compounds 1, 3, and 9 was confirmed by X-ray crystallography. The anti-proliferative activity showed that among all the tested compounds, compounds 3, (IC50 2.51 ± 3.0, 4.22 ± 1.6 and 2.27 ± 1.9 µM), 11 (IC50 1.32 ± 2
Synthesis of Multisubstituted 1,4-Dihydrobenzoxazin-2-ones through a One-Pot Nucleophilic N-Alkylation/C-Alkylation of Cyclic α-Imino Esters
作者:Lode De Munck、Carlos Vila、Carolina Pons、José Pedro
DOI:10.1055/s-0036-1588742
日期:2017.6
via a one-pot N-alkylation/C-alkylation reactions is reported. A nucleophilic N-alkylation of 2-oxobenzoxazine-2-carboxylates with organozinc reagents with good selectivities and in moderate to good yields is described. Moreover, the synthesis of multisubstituted 1,4-dihydrobenzoxazine-2-ones bearing a tetrasubstituted carbon atom via a one-pot N-alkylation/C-alkylation reactions is reported.
Metal-free C3-alkoxycarbonylation of quinoxalin-2(1H)-ones with carbazates as ecofriendly ester sources
作者:Long-Yong Xie、Sha Peng、Tai-Gang Fan、Yan-Fang Liu、Meng Sun、Li-Lin Jiang、Xing-Xing Wang、Zhong Cao、Wei-Min He
DOI:10.1007/s11426-018-9446-1
日期:2019.4
Quinoxaline-3-carboxylates and analogues are prevalent key structural motifs in bioactive natural products and synthetic drugs. However, the practical protocol for preparation of these motifs from simple raw materials under mild conditions remains rare. In this article, we report a facile protocol for the efficient preparation of various quinoxaline-3-carbonyl compounds (30 examples, 63%–92%) through
喹喔啉-3-羧酸盐和类似物是生物活性天然产物和合成药物中普遍的关键结构基序。然而,在温和的条件下从简单的原材料制备这些图案的实用方案仍然很少。在本文中,我们报告了一种简便的方案,该方案可通过将喹喔啉-2(1 H)-酮与现成的氨基甲酸酯(或氨基甲酸酯)(或K 2 S 2 O 8在无金属和无碱条件下作为氧化剂存在。当使用氨基甲酸叔丁酯作为偶联剂时,脱羧产物3-(叔丁基)-1-甲基喹喔啉-2(1获得了H)-1。可以很容易地完成该过程在克级合成中的应用。机理研究表明,喹喔啉2(1 H)-通过自由基途径功能化。