Pyridazine derivatives and related compounds.: Part 13:: Synthesis and antimicrobial activity of some pyridazino[3′,4′:3,4]pyrazolo[5,1-c]-1,2,4-triazines

被引:54
作者
Deeb, A [1 ]
El-Mariah, F
Hosny, M
机构
[1] Zagazig Univ, Fac Sci, Dept Chem, Zagazig, Egypt
[2] Ain Shams Univ, Dept Chem, Fac Girls, Cairo, Egypt
关键词
D O I
10.1016/j.bmcl.2004.06.102
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
A general method for the preparation of substituted pyridazinopyrazolotriazines is reported. 3-Aminopyrazolo[3,4-4-d]pyridazine was diazotized and coupled with active methylene reagents to afford the tricyclic pyridazino[3',4':3,4]pyrazolo[5,1-c]-1,2,4-triazines with substituents such as methyl, phenyl, ethoxycarbonyl, acetyl or benzoyl, depending on the methylene reagent used. In addition several condensation reactions with hydrazines gave the corresponding acid hydrazide and/or hydrazones. Reactions of 3 with aromatic aldehydes afforded hydrazones. The products were screened for their antimicrobial activity against five microorganisms. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:5013 / 5017
页数:5
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