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

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

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

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

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

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

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

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

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

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

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