3-methyl-1-(thiophene-2-carbonyl)piperazine

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

ethyl (2Z)-2-chloro-2-[2-(3,5-dimethylphenyl)hydrazin-1-ylidene]acetate

ethyl (2Z)-2-chloro-2-[2-(2,3-dimethylphenyl)hydrazin-1-ylidene]acetate

ethyl (2Z)-2-chloro-2-[2-(3,4-dimethylphenyl)hydrazin-1-ylidene]acetate

ethyl (2Z)-2-chloro-2-[2-(3-chlorophenyl)hydrazin-1-ylidene]acetate