4,6-二甲氧基-2-(1-哌嗪)嘧啶

2-(1-哌嗪)-3-吡啶羧酸甲酯

1-(2,4-difluorophenyl)-6-fluoro-4-oxo-7-piperazin-1-ylquinoline-3-carboxylic acid

7-piperazin-1-ylthieno[2,3-c]pyridine

5-哌嗪-1-基-异喹啉