Nucleophile–nucleofuge duality of azide and arylthiolate groups in the synthesis of quinazoline and tetrazoloquinazoline derivatives
作者:Andris Jeminejs、Irina Novosjolova、Ērika Bizdēna、Māris Turks
DOI:10.1039/d1ob01315g
日期:——
5-Arylthio-tetrazolo[1,5-c]quinazolines (tautomers of 2-arylthio-4-azido-quinazolines) undergo facile nucleophilic aromatic substitution reactions with amines, alcohols and alkylthiols. This, combined with the recently reported arylsulfanyl group dance, provides straightforward access to 4-azido-2-N-, O-, S-substituted quinazolines and/or their tetrazolo tautomers from commercially available 2,4-dichloroquinazoline
5-芳硫基-四唑并[1,5- c ]喹唑啉(2-芳硫基-4-叠氮基-喹唑啉的互变异构体)与胺、醇和烷基硫醇发生容易的亲核芳族取代反应。这与最近报道的芳基硫烷基团舞相结合,提供了从市售 2,4-二氯喹唑啉中直接获得 4-叠氮基-2- N-、O-、S-取代的喹唑啉和/或其四唑互变异构体的途径。叠氮亚甲碱-四唑互变异构平衡和稠合四唑体系的吸电子特性在发展的转变中起着核心作用。5-氨基取代的四唑并[1,5- c]喹唑啉经历介质控制的互变异构体平衡,这使它们能够展示传统上与叠氮基取代基相关的反应性。此外,在取代产物的结构解析过程中,开发了一种由2,4-二叠氮基喹唑啉制备5- O-取代四唑并[1,5 - a ]喹唑啉的方法。所开发的方法将促进对喹唑啉衍生物的药物化学研究以及某些产品(例如4-(4-phenyl-1 H -1,2,3-triazol-1-yl)-2-( 4-甲基哌嗪-1-基)喹唑啉:λ em