作者:A. H. Shamroukh、A. E. Rashad、H. H. Sayed
DOI:10.1080/104265090921074
日期:2005.10
-enaminonitrile of 1-(6-p-tolyl-pyridazin-3-yl)-pyrazole derivative 2 was formed using (6-p-tolyl-pyridazin-3-yl)-hydrazine ( 1 ) and 2-ethoxymethylenemalononitrile. The β-enaminonitrile derivative 2 was in turn used as a precursor for the preparation of pyrazoles ( 4 , 6 ), pyrazolo[3, 4-d]-pyrimidines ( 3 , 7–12 ) and pyrazolo[4, 3-e][1,2,4]triazolo[4,3-c]pyrimidine ( 13 ). Also, N- and S-acyclic nucleosides 14
摘要 以 (6-p-tolyl-pyridazin-3-yl)-hydrazine ( 1 ) 和 2- 为原料, 合成了 1-(6-p-tolyl-pyridazin-3-yl)-吡唑衍生物 2 的新型 β-烯氨基腈。乙氧基亚甲基丙二腈。β-烯氨基腈衍生物 2 又用作制备吡唑 ( 4 , 6 )、吡唑并[3, 4-d]-嘧啶 ( 3 , 7–12 ) 和吡唑并 [4, 3-e] 的前体[1,2,4]三唑并[4,3-c]嘧啶(13)。此外,还制备了 N-和 S-无环核苷 14 和 15。一些制备的产品显示出有效的抗菌活性。