Synthesis and biological evaluation of some 2-(3,5-dimethyl-1H-pyrazol-1-yl)-1-arylethanones: Antibacterial, DNA photocleavage, and anticancer activities
作者:Vinod Kumar、Kamalneet Kaur、Deepkamal N. Karelia、Vikas Beniwal、Girish Kumar Gupta、Arun K. Sharma、Akhilesh Kumar Gupta
DOI:10.1016/j.ejmech.2014.05.004
日期:2014.6
active agents, regioselective synthesis of a series of 2-(3,5-dimethyl-1H-pyrazol-1-yl)-1-arylethanones 4a–k has been achieved under facile, extremely mild and greener reaction conditions with excellent yields. Moreover, one pot multicomponent reaction has also been reinvestigated under previously reported solvent conditions to prepare 4a–b and found that the reaction generates significant amount of
在继续努力寻找新的生物活性剂的过程中,在极简单的条件下,已经实现了区域选择性合成一系列2-(3,5-二甲基-1H-吡唑-1-基)-1-芳酮4a – k。温和绿色的反应条件,收率优异。此外,还已经在先前报道的溶剂条件下对一种多釜反应进行了重新研究,以制备4a - b,发现该反应会产生大量副产物。4a - k的化学结构是根据IR,NMR(1 H,13C)光谱,质谱和元素分析。对所有化合物的抗菌,DNA光裂解和抗癌活性进行了评估。其中,2-(3,5-二甲基-1 H-吡唑-1-基)-1-(萘-2-基)乙酮4j对大肠杆菌和金黄色葡萄球菌的抑制作用良好,分别约为50%和25分别为氨苄西林(标准药物)的百分比。化合物4a和4f对铜绿假单胞菌和大肠杆菌显示出相对中等的抑制作用。在DNA光裂解研究中,化合物4c和4d被发现具有很高的活性,并且可以完全降解两种形式的DNA(SC和OC),即使在紫外线照射下的1