Facile synthesis and biological assays of novel 2,4-disubstituted hydrazinyl-thiazoles analogs
作者:Fateme Ghanbari Pirbasti、Nosrat O. Mahmoodi
DOI:10.1007/s11030-015-9654-7
日期:2016.5
A convenient, one-pot multi-component synthesis of new 2,4-disubstituted hydrazinyl-thiazoles was accomplished using different aldehydes/ketones, thiosemicarbazide, and 4-methoxy phenacyl bromide in the presence of a catalytic amount of AcOH in EtOH. Products were obtained in reasonable yields and high purity. The in vitro antioxidant activity of hydrazinyl-thiazoles was evaluated by DPPH radical scavenging
在EtOH中催化量的AcOH存在下,使用不同的醛/酮,硫代氨基脲和4-甲氧基苯甲酰溴,可以方便地进行一锅多组分合成新的2,4-二取代的肼基-噻唑。以合理的产率和高纯度获得产物。与抗坏血酸相比,通过DPPH自由基清除活性评估了肼基-噻唑的体外抗氧化活性。合成的噻唑14c和14g具有最低的\(\ hbox IC} _ 50} \)值。此外,还筛选了肼基噻唑对六种细菌菌株的体外抗菌活性,这些菌株包括金黄色葡萄球菌,黄体分枝杆菌,大肠杆菌,Ps。铜绿假单胞菌,枯草芽孢杆菌和嗜水曲霉其中一些产品显示出良好的抗菌活性。此外,化合物14a对黑素瘤癌细胞系A375具有抗癌活性,其中\(\ hbox LC} _ 50} = 0.55 \ hbox mg} / \ hbox mL} \),相对于正常细胞系(Hu- 2)与\(\ hbox LC} _ 50} = 1.19 \ hbox mg}