Synthesis of novel bis(pyrimido[5,4-c]quinoline-2,4(1H,3H)-dione) and its derivatives: Evaluation of their antioxidant properties
作者:Kandasamy Parameswaran、Paramasivam Sivaguru、Appaswami Lalitha
DOI:10.1016/j.bmcl.2013.04.068
日期:2013.7
One pot cyclocondensation reaction of barbituric/thiobarbituric acid with aromatic aldehydes and p-phenylenediamine/2,6-diaminopyridine by refluxing in glacial acetic acid afforded novel bis(pyrimido[5,4-c]quinoline-2,4(1H,3H)-diones)/pyrido bis(pyrimido[5,4-c]quinoline-2,4(1H,3H)-diones. All the synthesized compounds were screened for their antioxidant activities using FRAP and DPPH methods. Compounds
通过在冰醋酸中回流,使巴比妥/硫代巴比妥酸与芳族醛和对苯二胺/ 2,6-二氨基吡啶进行一锅环缩合反应,得到新的双(嘧啶并[5,4 - c ]喹啉-2,4(1 H,3)H)-二酮)/吡啶双(嘧啶[5,4 - c ]喹啉-2,4(1 H,3 H)-二酮。所有合成的化合物均采用FRAP和DPPH方法筛选其抗氧化活性。氯取代基显示出相对良好的抗氧化性能。