作者:M. Rahimizadeh、M. Nikpour、M. Bakavoli
DOI:10.1002/jhet.5570440230
日期:2007.3
intermediate which was successfully converted to its corresponding 3-(alkylsulfanyl)-7-chloro-1,5-dimethyl-1H-pyrimido[4,5-e][1,3,4]thiadiazine derivatives in basic acetonitrile. The latter compounds were reacted with secondary amines in boiling ethanol to afford the related 7-amino derivatives.
5-溴-2-氯-4-甲基-6-(1-甲基肼基)嘧啶可通过在氯仿中用甲基肼处理从最近报道的5-溴-2,4-二氯-6-甲基嘧啶中容易地获得。用二硫化碳和几种烷基卤化物处理该化合物,得到中间体,该中间体成功地转化为其相应的3-(烷基硫烷基)-7-氯-1,5-二甲基-1H-嘧啶基[4,5- e ] [1 ,3,4]噻二嗪衍生物在碱性乙腈中的作用。后者的化合物与仲胺在沸腾的乙醇中反应,得到相关的7-氨基衍生物。