A novel and eco-friendly procedure for the synthesis of some pyrazolo-thiadiazolo-pyrimidinones and its in vitro anti-bacterial activity
作者:Dhananjaya Ranganath、Abhishek Mazumdar、Sirisha Mulukuri、Raghava Doonaboina、Murty Devarakonda、Mailavaram Raghu Prasad
DOI:10.1007/s00044-011-9769-z
日期:2012.9
4-d][1,3,4]thiadiazolo[3,2-a]pyrimidin-4(1H)-ones have been synthesized by treating 2-chloromethyl-8-phenyl-pyrazolo[3,4-d][1,3,4]thiadiazolo[3,2-a]pyrimidin-4(1H)-one with various nucleophiles. The chloromethyl derivative was prepared by treating 2-amino-3-mercapto pyrazolo[3,4-d]pyrimidine with one carbon donor, chloroacetic acid. The intermediate 2-amino-3-mercapto pyrazolo[3,4-d]pyrimidine was prepared
合成了一系列新的2-取代的氨基甲基-8-苯基-吡唑并[3,4- d ] [1,3,4]噻二唑并[3,2 - a ]嘧啶-4(1 H)-。用各种亲核试剂处理2-氯甲基-8-苯基-吡唑并[3,4- d ] [1,3,4]噻二唑并[3,2 - a ]嘧啶-4(1 H)-one。通过用一种碳供体氯乙酸处理2-氨基-3-巯基吡唑并[3,4- d ]嘧啶来制备氯甲基衍生物。中间体2-氨基-3-巯基吡唑并[3,4- d] pyrimidine是从2-氨基-3-carbethoxy-1-phenyl-pyrazole开始的新型环保方法制备的。目标化合物具有广谱抗菌活性(柯比鲍尔方法)。