Synthesis of new heterocyclic systems fused at pyrazolo[3,4-c]-2,7-naphthyridine core
作者:Samvel N. Sirakanyan、Elmira K. Hakobyan、Domenico Spinelli、Athina Geronikaki、Victor Kartsev、Hasmik A. Yegoryan、Anush A. Hovakimyan
DOI:10.1016/j.mencom.2022.05.034
日期:2022.5
Efficient syntheses of new heterocyclic systems comprising pyrimido[1',2':1,5]pyrazolo[3,4-c]-2,7-naphthyridine, pyrazolo[3,4-c][1,2,4]triazolo[3,4-a]-2,7-naphthyridine and pyrazolo[3,4-c]tetrazolo[5,1-a]-2,7-naphthyridine cores were performed in two simple steps. In the first step, pyrazole ring was fused at the 2-chloro-3-cyanopyridine moiety by treatment with hydrazine. In the second step, pyrimidine
包含嘧啶并[1 ' ,2 ' :1,5]吡唑并[3,4- c ]-2,7-萘啶、吡唑并[3,4-c][1,2,4]三唑并的新型杂环体系的高效合成[3,4- a ]-2,7-萘啶和吡唑并[3,4- c ]四唑并[5,1- a ]-2,7-萘啶核通过两个简单的步骤进行。在第一步中,吡唑环通过肼处理在2-氯-3-氰基吡啶部分稠合。在第二步中,嘧啶部分通过与乙酰丙酮的杂环化在由此形成的3-氨基吡唑部分融合。