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

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

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

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

1-(2,3-dimethylphenyl)-3-(ethoxycarbonyl)-5-methyl-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

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

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

4-(furan-2-carbonyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid

4-(2-fluorobenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid

4-(2-bromobenzoyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid