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