2-(2-bromophenyl)-6-(2-hydroxyphenyl)-4-phenyl-4,5-dihydro-1,2,4-triazin-3-(2H)-one 、
2-氯-N,N-二甲基乙胺 在
potassium carbonate 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
以55%的产率得到2-(2-bromophenyl)-6-(2-dimethylaminoethoxyphenyl)-4-phenyl-4,5-dihydro-1,2,4-triazin-3-(2H)-one