Synthesis, Reactions, and Antiviral Activity of 1-(1<i>H</i>-Pyrazolo[3,4-<i>b</i>]pyridin-5-yl)ethanone and Pyrido[2′,3′:3,4]pyrazolo[5,1-<i>c</i>][1,2,4]triazine Derivatives
作者:Fawzy A. Attaby、A. H. H. Elghandour、M. A. Ali、Yasser M. Ibrahem
DOI:10.1080/10426500500326404
日期:2006.6
3-yl-1H-pyrazolo[3,4-b]pyridin-5-yl)ethanone (3) was obtained in very pure state and used as a good starting material for the present study. It diazotized to give the corresponding diazonium salt 9 and also reacted with phenyl isothiocyanate to give the corresponding thiourea derivative 4. Compound 4 was used for the preparation of thiazole derivatives 5–8 via the reaction with active halogen-containing
1-(3-Amino-6-methyl-4-pyridin-3-yl-1H-pyrazolo[3,4-b]pyridin-5-yl)ethanone (3) 以非常纯的状态获得并用作良好的本研究的起始材料。重氮化得到相应的重氮盐 9,并与异硫氰酸苯酯反应得到相应的硫脲衍生物 4。化合物 4 通过与含活性卤素的化合物反应制备噻唑衍生物 5-8。另一方面,化合物 9 与几种活性含 -CH2- 的化合物偶联,得到相应的三嗪衍生物 10-17。考虑到来自 IR、 1 H NMR、质谱和元素分析的数据,阐明了新合成的杂环化合物的化学结构。细胞毒性,抗HSV1,