哌嗪-1,4-二乙酸

2,2'-(1,4-哌嗪二基)二[1-(4-氯苯基)-乙酮

2-(4-phenacylpiperazin-1-yl)-1-phenylethanone

1-(2-氯乙基)哌嗪

1-[(4-甲氧基苯基)-苯基甲基]-哌嗪