[EN] 6-1H-IMIDAZO-QUINAZOLINE AND QUINOLINES DERIVATIVES, NEW MAO INHIBITORS AND IMIDAZOLINE RECEPTOR LIGANDS [FR] DÉRIVÉS DE 6-1H-IMIDAZO-QUINAZOLINE ET QUINOLÉINES, NOUVEAUX INHIBITEURS DE MAO ET LIGANDS DES RÉCEPTEURS D'IMIDAZOLINES
Molecules labeled with fluorine-18 (18F) are used in positron emission tomography to visualize, characterize and measure biological processes in the body. Despite recent advances in the incorporation of 18F onto arenes, the development of general and efficient approaches to label radioligands necessary for drug discovery programs remains a significant task. This full account describes a derisking approach
[EN] BENZOXAZINONE DERIVATIVES FOR THE TREATMENT OF GLYTL MEDIATED DISORDERS<br/>[FR] DÉRIVÉS DE BENZOXAZINONE POUR TRAITER DES TROUBLES INDUITS PAR GLYTL
申请人:GLAXO GROUP LTD
公开号:WO2011012622A1
公开(公告)日:2011-02-03
The present invention relates to benzoxazinone derivatives, processes for their preparation, pharmaceutical compositions and medicaments containing them and to their use in treating disorders mediated by GlyT1, including neurological and neuropsychiatric disorders, in particular psychoses, dementia or attention deficit disorder.
catalyst-free direct aerobic oxidative annulation reaction of 2-aminobenzylic amines and α-hydroxy ketones efficiently afforded versatile 5H-1,4-benzodiazepine derivatives by employing air as economic and green oxidant under mild conditions. Interestingly, solvent was found to be crucial to the reaction, so that by using acetic acid as the best solvent an efficient and practical method could be achieved, requiring
2- aminobenzylic胺和α的不含催化剂的直接氧化好氧环反应-羟基酮有效地得到多功能5 ħ通过采用空气作为在温和条件下经济和绿色氧化剂-1,4-苯并二氮杂衍生物。有趣的是,发现溶剂对反应至关重要,因此通过使用乙酸作为最佳溶剂,可以实现一种高效实用的方法,完全不需要催化剂或添加剂。此方法容许广泛2-aminobenzylic胺和α的-羟基酮,并且可以放大到多克合成,并在药学上有活性的一步法合成直接施加N-去甲基美西泮衍生物,揭示了这种新方法在合成 5 H -1,4-苯二氮卓类药物和化学品中的潜力。
Base-Promoted Synthesis of 2-Aryl Quinazolines from 2-Aminobenzylamines in Water
作者:Tanmay Chatterjee、Dong In Kim、Eun Jin Cho
DOI:10.1021/acs.joc.8b00327
日期:2018.7.20
transition-metal-free procedure for the synthesis of a highly valuable class of heteroaromatics, quinazolines, was developed by using easily available 2-aminobenzylamines and α,α,α-trihalotoluenes. The transformation proceeded smoothly in the presence of only sodium hydroxide and molecular oxygen in water at 100 °C, furnishing a variety of 2-aryl quinazolines. The crystallization process of the crude
Synthesis of 6-Piperazinyl-3,4-dihydroquinazolin-2(1H)-ones
作者:N. Ullah
DOI:10.14233/ajchem.2014.15639
日期:——
A series of new 6-piperazinyl-3,4-dihydroquinazolin-2(1H)-ones have been synthesized. The described compounds are structurally related to adoprazine, a potential atypical antipsychotics bearing potent D2 receptor antagonist and 5-HT1A receptor agonist properties. Buchwald-Hartwig coupling of suitably modified aryl bromides with tert-butyl piperazine-1-carboxylate afforded the advanced intermediate piperazinyl-3,4-dihydroquinazolin-2(1H)-one. The reductive amination of the latter with appropriately designed biarylaldehydes accomplished the synthesis of 6-piperazinyl-3,4-dihydroquinazolin-2(1H)-ones.