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

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

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

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

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

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

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

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

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

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

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