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

1-(4-chloro-3-nitrobenzoyl)-3-methylpiperazine

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

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

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

1-(2-methoxybenzoyl)-2-methylpiperazine

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

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

1-(3,5-dimethylphenyl)-5-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylic acid

1-(5-chloro-2-methylphenyl)-5-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylic acid

1-(4-fluorophenyl)-5-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylic acid