niger. Further the compounds were screened for free radical scavenging activity using 2,2-diphenyl-1-picrylhydrazyl (DPPH). The free radical scavenging property was performed using UV-Visible spectroscopy. The results were compared with the standard BHT (Butylated Hydroxy Toluene). Compounds, 4a and 4e were shown higher percentage of inhibition when compare to the standard. The result confirms that further
已使用常规方法合成
吲哚稠合的cr啶4a-e。在本文中,为实现目标分子,反应是通过两步进行的。在步骤1中,
咔唑酮1与
二苯甲酮2之间反应,得到二氢
吲哚并r啶3。在步骤2中,化合物5在
二苯醚存在下用5%
钯/碳处理5h,得到深棕色产物4。使用柱色谱法纯化最终产物4。所有合成的化合物(例如3和4)均通过熔点,FTIR,(1)H NMR和质谱进行表征。进一步检查化合物的纯度,将其置于CHN分析仪中。筛选了目标分子(例如3和4),以针对
枯草芽孢杆菌(B. subtilis),
金黄色葡萄球菌(S. aureus),肺炎克雷伯菌(K. pneumonia),伤寒沙门氏菌(S. typhi); 以及黑曲霉(A. niger),烟曲霉(A. fumigatus)等真菌。所获得的结果清楚地证明了靶分子显示出对肺炎克雷伯菌和黑曲霉的合理活性。此外,使用2,2
-二苯基-1-
吡啶并
肼基(
DPPH)筛选化合物的自由基清除