6-Fluoro-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-carboxylic acid
5-Hydroxy-3-methyl-4-(trifluoromethoxy)pyridine-2-acetic acid
2-Fluoro-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-5-carboxylic acid
2-Fluoro-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-6-carboxylic acid