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

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

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

1-(3-fluorobenzoyl)-2-methylpiperazine

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

3-methyl-1-(2-methylpiperazin-1-yl)butan-1-one

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

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

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

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

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

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

1-(2,3-dimethylphenyl)-3-(ethoxycarbonyl)-4,5-dihydro-1H-pyrazole-5-carboxylic acid

3-(ethoxycarbonyl)-1-(4-methylphenyl)-4,5-dihydro-1H-pyrazole-5-carboxylic acid

3-(ethoxycarbonyl)-1-(4-methoxyphenyl)-4,5-dihydro-1H-pyrazole-5-carboxylic acid