Synthesis, Characterization, and Antioxidant Evaluation of Some Novel Pyrazolo[3,4-<i>c</i>
][1,2]diazepine and Pyrazolo[3,4-<i>c</i>
]pyrazole Derivatives
作者:Khaled S. Mohammed、Engy E. Elbeily、Fathy M. El-Taweel、Ahmed A. Fadda
DOI:10.1002/jhet.3425
日期:2019.2
5‐Hydrazineyl‐3‐methyl‐1H‐pyrazole (1) was used as a starting material for the synthesis of novel pyrazolo[3,4‐c][1,2]diazepine derivatives 3, 4, and 6a,b by its reaction with acetylacetone, ethyl acetoacetate, and isatylidene derivatives 5a,b, respectively. Also, pyrazolo[3,4‐c][1,2]diazepine derivative 11 was synthesized via multicomponent reaction of 1, benzaldehyde, and malononitrile. Moreover
5- Hydrazineyl -3-甲基-1- ħ吡唑(1)用作用于新的吡唑并[3,4的合成的起始原料Ç ] [1,2]二氮杂衍生物3,4,和图6A,B由分别与乙酰丙酮,乙酰乙酸乙酯和异亚烷基衍生物5a,b反应。此外,吡唑并[3,4– c ] [1,2]二氮杂derivative衍生物11是通过1,苯甲醛和丙二腈的多组分反应合成的。此外,化合物1用于合成新型吡唑并[3,4- c ]吡唑衍生物7与伊斯丁反应。此外,吡唑并[3,4- c ]吡唑衍生物18a-c是通过用芳香醛16a处理2-氰基N '-(3-甲基-1 H-吡唑-5-基)乙酰肼(13)合成的–c。通过分析和光谱数据对新合成的化合物进行了评估。筛选所有新合成的化合物的抗氧化活性。化合物3,13,18B,和18C显示出更高的自由基清除活性。