1-(piperazin-1-yl)heptan-1-one

1-{[1,1'-biphenyl]-4-carbonyl}-3-methylpiperazine

3-methyl-1-(naphthalene-1-carbonyl)piperazine

1-(2-methylpiperazin-1-yl)propan-1-one

1-(4-methoxybenzoyl)-2-methylpiperazine

3,3-dimethyl-1-(2-methylpiperazin-1-yl)butan-1-one

1-(2-fluorobenzoyl)-2-methylpiperazine

1-(2-methylpiperazin-1-yl)heptan-1-one

1-(2-methoxybenzoyl)-2-methylpiperazine

3-cyclopentyl-1-(2-methylpiperazin-1-yl)propan-1-one

ethyl (2Z)-2-chloro-2-[2-(2-methoxy-5-methylphenyl)hydrazin-1-ylidene]acetate