(5-Bromopyrimidin-2-yl)dimethylamine5-Bromo-2-(dimethylamino)pyrimidine5-溴-N,N-二甲基嘧啶-2-胺5-Bromo-N,N-dimethylpyrimidin-2-amine2-(二甲基氨基)-5-溴嘧啶2-(Dimethylamino)-5-bromopyrimidine5-溴-2-(二甲基氨基)嘧啶5-Bromo-2-(dimethylamino)pyrimidine5-Bromo-N,N-dimethylpyrimidin-2-amine