Synthesis and antimicrobial activity of some new heterocycles incorporating antipyrine moiety
作者:Samir Bondock、Ramy Rabie、Hassan A. Etman、Ahmed A. Fadda
DOI:10.1016/j.ejmech.2007.12.009
日期:2008.10
key intermediate for the synthesis of some new coumarin 2, pyridine 3, pyrrole 4, thiazole 7, pyrido[2',3':3,4][pyrazolo[5,1-c]triazine and aminopyrazole 9. Treatment of aminopyrazole 9 with nitrous acid, 1,3-dicarbonyl compounds, enaminone, and DMF-DMA led to the formation of pyrazolo[3,4-d]triazine 10, pyrazolo[1,5-a]pyrimidines 11, 12, 14, and pyrazolo[3,4-d]pyrimidine 13, respectively. Condensation
2-氰基-N-(1,5-二甲基-3-氧代-2-苯基-2,3-二氢-1H-吡唑-4-基)乙酰胺(1)被用作合成某些新化合物的关键中间体香豆素2,吡啶3,吡咯4,噻唑7,吡啶基[2',3':3,4] [吡唑并[5,1-c]三嗪和氨基吡唑9。二羰基化合物,烯胺酮和DMF-DMA导致形成吡唑并[3,4-d]三嗪10,吡唑并[1,5-a]嘧啶11、12、14和吡唑并[3,4-d]嘧啶13,分别。9与靛红的缩合得到席夫碱16。通过IR,1H NMR和质谱研究对新合成的化合物进行表征。测试了合成产物的代表性化合物,并将其作为抗菌剂进行了评估。