1-(1,4-diazepan-1-yl)-3,3-dimethylbutan-1-one

1-(3,5-dinitrobenzoyl)-3-methylpiperazine

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

1-(furan-2-carbonyl)-3-methylpiperazine

1-(4-chloro-2-fluorobenzoyl)-3-methylpiperazine

1-(3-methylpiperazin-1-yl)heptan-1-one

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

2-methyl-1-(4-methylbenzoyl)piperazine

1-{[1,1'-biphenyl]-4-carbonyl}-2-methylpiperazine

1-(3,4-dichlorobenzoyl)-2-methylpiperazine

(2E)-1-(2-methylpiperazin-1-yl)-3-phenylprop-2-en-1-one