Novel synthesis of angular thiazolo[5,4-f] and [4,5-h]quinazolines, preparation of their linear thiazolo[4,5-g] and [5,4-g]quinazoline analogs
作者:Damien Hédou、Rémi Guillon、Charlotte Lecointe、Cédric Logé、Elizabeth Chosson、Thierry Besson
DOI:10.1016/j.tet.2013.02.066
日期:2013.4
Synthesis of 9-oxo-8,9-dihydrothiazolo[5,4-f]quinazoline-2-carbonitrile (1) or 6-oxo-6,7-dihydrothiazolo[4,5-h]quinazoline-2-carbonitrile (2) was reinvestigated with the ambition of varying the position of the thiazole ring linked to the quinazolin-4-one moiety, in order to synthesize two novel linear tricyclic 8-oxo-7,8-dihydrothiazolo[4,5-g]quinazoline-2-carbonitrile (3) and 8-oxo-7,8-dihydrothiazolo[5
9-氧代8,9-二氢噻唑[5,4- f ]喹唑啉-2-腈(1)或6-氧代6,7-二氢噻唑[4,5 - h ]喹唑啉-2-腈(2)的合成)进行了重新研究,目的是改变与喹唑啉4-one部分相连的噻唑环的位置,以便合成两个新颖的线性三环式8-氧代-7,8-二氢噻唑并[4,5- g ]喹唑啉- 2-甲腈(3)和8-氧代7,8-二氢噻唑并[5,4 - g ]喹唑啉-2-甲腈(4)。本文描述的途径为获得有效的生物活性杂环化合物文库提供了各种替代和转化途径。