1-甲基-4-(1-氧代丙基)-哌嗪

ethyl 3-oxo-3-(4-methylpiperazin-1-yl)propanoate

4-methyl-piperazine-1-carbothioyl chloride

1-methyl-4-(4-methyl-3-nitrophenyl)-piperazine

2-methoxy-11-(4-methyl-1-piperazinyl)-5H-dibenzo[b,e][1,4]diazepine