Pyrimidine derivatives.<b>VII</b>. Nucleophilic reactions of 5-bromo-1-(bromoalkyl)-6-bromomethyl-2,4(1<i>H</i>,3<i>H</i>)-pyrimidinediones
作者:Toshio Kinoshita、Yumiko Takaishi、Tomoko Okunaka、Takehiro Ohwada、Sunao Furukawa
DOI:10.1002/jhet.5570290410
日期:1992.7
1-(bromoalkyl)-5-bromo-6-bromomethyl-3-methyl-2,4(1H,3H)-pyrimidinedione (1) with several nucleophiles were examined as follows: by reaction with sodium methoxide, 6-(bismethoxy)methyl-5-debrominated derivatives 2, 3, and 4 were prepared; the corresponding di-substituted compounds (side chains in 1-and 6-positions) 5, 6, 7, and 9 were obtained by treatment with silver nitrate, silver acetate, potassium thiocyanate
1-(溴代烷基)-5-溴代-6-溴代甲基-3-甲基-2,4(1 H,3 H)-嘧啶二酮(1)与几种亲核试剂的反应如下:通过与甲醇钠反应,制备了6-(双甲氧基)甲基-5-脱溴的衍生物2、3和4。通过用硝酸银,乙酸银,硫氰酸钾和硫代乙酸钾处理得到相应的二取代化合物(1和6位侧链)5、6、7和9。与硫代乙酰胺和异丁胺反应制得双环化合物[1,4]噻嗪基[4,3-c] -11,吡嗪并[1,2- c ]-分别为12和[1,4]二氮杂[1,2- c ]嘧啶二酮13;吡咯烷,吗啉和叠氮化钠提供相应的6-取代的化合物14、15和16。