Synthesis and Antioxidant Evaluation of Some New Pyridopyrazolotriazine Derivatives
作者:Moustafa A. Gouda
DOI:10.1002/jhet.2045
日期:2015.7
hydrazone derivatives 4a,4b, 9, 10, 11, 18a, 18b, 19a,19b, 20, and 25, respectively. The previous synthesized compounds underwent cyclization in acetic acid to give the corresponding pyridopyrazolotriazines 5a,5b, 12, 13, 14, 21a,21b, 22a, 22b, 22c, 23, and 26, respectively. The newly synthesized compounds were characterized by elemental analysis and spectral data and screened for their antioxidant activities
吡唑并Diazodization [3,4 b ]吡啶1,得到重氮盐2即加上活性亚甲基化合物如3a中,图3b,6,7,8,图15A,15B,16A,16B,17,和24在吡啶,得到芳基腙衍生物4A,4B,9,10,11,18A,18B,19A,19B,20和25。在乙酸先前合成的化合物环化后行,得到相应的pyridopyrazolotriazines图5a,5b中,12,13,14,21A,21B,22A,22B,22C,23和26,分别。通过元素分析和光谱数据对新合成的化合物进行表征,并筛选其抗氧化活性。ABTS方法的结果清楚地表明,化合物1,图4b,图5b,11,20,25,和26中显示有希望的体外抗氧化活性。化合物1和4a对由博来霉素铁络合物诱导的DNA损伤表现出高度的保护作用。