Synthesis and biological evaluation of novel pyrazoline derivatives as anti-inflammatory and antioxidant agents
作者:Nadia A. Khalil、Eman M. Ahmed、Hala B. El-Nassan、Osama K. Ahmed、Ahmed M. Al-Abd
DOI:10.1007/s12272-012-0606-9
日期:2012.6
A series of novel 5-aryl-3-cyclopropyl-4,5-dihydropyrazole derivatives 2a–p were synthesized via cyclization of chalcones 1a–h with thiosemicarbazide or semicarbazide HCl and evaluated as anti-inflammatory/antioxidant agents. The structures were confirmed by elemental analyses and spectral data. The free radical scavenging activity toward superoxide was determined. Their effect on hepatocytes viability and nitric oxide (NO) production in LPS-stimulated macrophages was also determined. The results showed that compounds 2e and 2n demonstrated the highest free-radical scavenging and anti-inflammatory activities, thus can be useful in the prevention of oxidative stress and inflammation-related disorders.
通过查耳酮 1a-h 与硫代氨基脲或盐酸氨基脲的环化反应,合成了一系列新型 5-芳基-3-环丙基-4,5-二氢吡唑衍生物 2a-p,并将其作为抗炎/抗氧化剂进行了评估。元素分析和光谱数据证实了这些化合物的结构。还测定了它们对超氧化物的自由基清除活性。还测定了它们对肝细胞活力和 LPS 刺激巨噬细胞产生一氧化氮(NO)的影响。结果表明,化合物 2e 和 2n 具有最高的自由基清除活性和抗炎活性,因此可用于预防氧化应激和炎症相关疾病。