1-(furan-2-carbonyl)-2-methylpiperazine

1-(3-bromobenzoyl)-2-methylpiperazine

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

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

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

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

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

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

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

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

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