6-phenyl-3-(4-pyrimidin-2-ylpiperazin-1-yl)-1H-pyridazin-4-one

1-(2-嘧啶基)哌嗪

3,4-二氯-6-苯基哒嗪

3-氯-6-苯基哒嗪-4-醇

2-benzyl-6-phenyl-4,5-dihydropyridazin-3-one