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

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

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

2-methyl-1-(pyridine-4-carbonyl)piperazine

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

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

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

5-phenyl-1-[3-(trifluoromethyl)phenyl]-4,5-dihydro-1H-pyrazole-3-carboxylic acid

5-phenyl-1-[4-(propan-2-yl)phenyl]-4,5-dihydro-1H-pyrazole-3-carboxylic acid

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

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