2-Oxo-1-(4-(trifluoromethyl)phenyl)-1,2-dihydropyridine-3-carboxylic acid
1-(4-Methoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxylic acid
1-(3-Methoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxylic acid
1-(2-Methoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxylic acid