ethyl 5-[(4-bromophenyl)methyl]-1H-pyrazole-4-carboxylate

5-[(4-chlorophenyl)methyl]-1H-pyrazole-4-carboxylic acid

5-(4-nitrophenyl)-1H-pyrazole-4-carboxylic acid

5-(4-ethoxyphenyl)-1H-pyrazole-4-carboxylic acid

5-[(naphthalen-2-yloxy)methyl]-1H-pyrazole-4-carboxylic acid

5-[(3-fluorophenyl)methyl]-1H-pyrazole-4-carboxylic acid

5-(4-cyclohexylphenyl)-1,2-oxazole-3-carboxylic acid

5-(2,4-dichlorophenyl)-1H-pyrazole

3-(furan-2-yl)-4,5-dihydro-1,2-oxazole-5-carboxylic acid

3-(3-nitrophenyl)-4,5-dihydro-1,2-oxazole-5-carboxylic acid

3-(3-chlorophenyl)-4,5-dihydro-1,2-oxazole-5-carboxylic acid