Synthesis and Antimicrobial Activity of Some Novel 5-Alkyl-6-Substituted Uracils and Related Derivatives
作者:Abdulghafoor A. Al-Turkistani、Omar A. Al-Deeb、Nasser R. El-Brollosy、Ali A. El-Emam
DOI:10.3390/molecules16064764
日期:——
hydrolyzed by heating in 10% aqueous sodium hydroxide for 30 minutes. The reaction of compounds 5a-c with 1-substituted piperazines yielded the corresponding 5-alkyl-6-(4-substituted-1-piperazinyl)uracils 6a-j. The target 8-alkyltetrazolo[1,5-f]pyrimidine-5,7(3H,6H)-diones 7a-c were prepared via the reaction of 5a-c with sodium azide. Compounds 6a-j and 7a-c were tested for in vitro activities against
6-氯-5-乙基-、正丙基-和异丙基尿嘧啶 5a-c 由相应的 5-烷基巴比妥酸 3a-cvia 用磷酰氯和 N,N-二甲基苯胺处理得到相应的 5-烷基-2 ,4,6-三氯嘧啶 4a-c,通过在 10% 氢氧化钠水溶液中加热 30 分钟选择性水解。化合物5a-c与1-取代哌嗪的反应产生相应的5-烷基-6-(4-取代-1-哌嗪基)尿嘧啶6a-j。通过5a-c与叠氮化钠的反应制备目标8-烷基四唑并[1,5-f]嘧啶-5,7(3H,6H)-二酮7a-c。测试了化合物 6a-j 和 7a-c 对一组革兰氏阳性菌和革兰氏阴性菌以及酵母样致病真菌白色念珠菌的体外活性。化合物 6h 显示出强大的广谱抗菌活性,而化合物 6b 显示出对革兰氏阳性菌的中等活性。所有测试的化合物实际上对白色念珠菌无活性。