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

3-cyclopentyl-1-(2-methylpiperazin-1-yl)propan-1-one

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

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

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

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

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

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

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

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

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

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

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

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

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