Synthesis and Antimicrobial Activity of New Pyridothienopyrimidines and Pyridothienotriazines
作者:Abdu E. Abdel-Rahman、Etify A. Bakhite、Elham A. Al-Taifi
DOI:10.1002/jccs.200200035
日期:2002.4
phosphorus oxychloride produced 4-chloropyrimidines lla-d which were used as precursors for the rest of the target heterocycles. Some of the prepared compounds were tested in vitro for their antimicrobial activities.
5-乙酰基-3-氨基-4-芳基-6-甲基噻吩并[2,3-b]吡啶-2-甲酰胺(5a,b)与原甲酸三乙酯或亚硝酸反应得到相应的嘧啶酮6a,b和三嗪酮7a,b。进行 5a,b 与乙酸酐的反应,其产物被鉴定为 8-乙酰基-9-芳基-2,7-二甲基吡啶并[3',2':4,5]噻吩并[3,2 -d]pyrimidine-4(3H)-one (9a,b) 和相关的 5-乙酰基-4-芳基-3-联乙酰氨基-6-甲基噻吩并[2,3-b]吡啶-2-甲腈 (10a,b) . 7a 与一些卤代化合物反应得到 N-烷基化三嗪酮 8a-c。6a、b 和 9a、b 用三氯氧化磷氯化产生 4-氯嘧啶 11a-d,用作其余目标杂环的前体。一些制备的化合物在体外进行了抗微生物活性测试。