4-ethoxy-3-(1,3-dimethyl-1H-pyrazolo[4,3-e][1,2,4]-triazin-5-yl)benzene-1-sulfonyl chloride 、
5-[2-ethoxy-5-(piperazin-1-ylsulfonyl)-phenyl]-1,3-dimethyl-1H-pyrazolo[4,3-e][1,2,4]-triazine 以
乙腈 为溶剂,
生成 1,4-bis(3-(1,3-dimethyl-1H-pyrazolo[4,3-e][1,2,4]triazin-5-yl)-4-ethoxyphenylsulfonyl)piperazine