在室温下,通过酸酐,异氰酸酯或酰氯将2-(2-氨基苯基)喹唑啉-4-胺选择性地酰化在苯基氨基上。在与乙氧基亚甲基衍生物和原酸酯的反应中获得相似的选择性。在温和的条件下,用乙酸酐和异氰酸酯还可以使喹唑啉-喹唑啉四环结构中的环外亚氨基取代基酰化。用浓盐酸(在60°C下1当量)和3 M NaOH(3当量,rt)进行水解以释放苯胺取代基,从而生成甲酰化的衍生物或裂解杂环胺中的酰基。
A chloride-responsive molecular switch: driving ion transport and empowering antibacterial properties
作者:Sribash Das、Rama Karn、Mohit Kumar、Soumya Srimayee、Debasis Manna
DOI:10.1039/d3ob01826a
日期:——
A molecular switch was developed to recognize and transport Cl− across lipid bilayers. The XRD-crystal structure and NOESY NMR spectra of a potent 4-aminoquinazoline analogue confirmed Cl−-induced conformation changes. Systematic biophysical studies revealed that the quinazoline moiety forms cooperative interactions of H+ and Cl− ions with the thiourea moiety, resulting in the transport of H+/Cl− across
Microwave enhanced synthesis of 4-aminoquinazolines
作者:Julio A Seijas、M.Pilar Vázquez-Tato、M Montserrat Martı́nez
DOI:10.1016/s0040-4039(00)00090-3
日期:2000.3
Cyanoaromatic compounds react with anthranilonitrile in a domestic microwave oven affording good yields of the corresponding 4-aminoquinazolines in a very short irradiation time. (C) 2000 Elsevier Science Ltd. All rights reserved.
TRIAZOLE COMPOUNDS USEFUL AS PROTEIN KINASE INHIBITORS
申请人:VERTEX PHARMACEUTICALS INCORPORATED
公开号:EP1318814B1
公开(公告)日:2007-05-30
[EN] COMPOSITIONS AND METHODS USING ADENOSINE A3 RECEPTOR ANTAGONISTS FOR THE TREATMENT OF INFLAMMATORY EYE DISEASES<br/>[FR] COMPOSITIONS ET PROCÉDÉS UTILISANT DES ANTAGONISTES DU RÉCEPTEUR DE L'ADÉNOSINE A3 POUR TRAITEMENT DE MALADIES OCULAIRES INFLAMMATOIRES
申请人:ACORN BIOMEDICAL INC
公开号:WO2012125400A1
公开(公告)日:2012-09-20
Disclosed are compositions comprising adenosine A3 receptor antagonists and methods of their use for the treatment of inflammatory eye diseases, such as uveitis and dry eye.
Reactivity and regioselectivity in the acylation of 2,4-diaminoquinazolines
作者:Elina Marinho、M. Fernanda Proença
DOI:10.1016/j.tet.2016.06.003
日期:2016.7
at the phenylamino group by anhydrides, isocyanates or acyl chlorides, at room temperature. A similar selectivity was obtained in the reaction with ethoxymethylene derivatives and orthoesters. Acylation of the exocyclic imino substituent in the quinazolino-quinazoline tetracyclic structure also occurred under mild conditions with acetic anhydride and isocyanates. Hydrolysis to release the aniline substituent
在室温下,通过酸酐,异氰酸酯或酰氯将2-(2-氨基苯基)喹唑啉-4-胺选择性地酰化在苯基氨基上。在与乙氧基亚甲基衍生物和原酸酯的反应中获得相似的选择性。在温和的条件下,用乙酸酐和异氰酸酯还可以使喹唑啉-喹唑啉四环结构中的环外亚氨基取代基酰化。用浓盐酸(在60°C下1当量)和3 M NaOH(3当量,rt)进行水解以释放苯胺取代基,从而生成甲酰化的衍生物或裂解杂环胺中的酰基。