2-Hydroxy-5-methoxy-3-(trifluoromethoxy)pyridine-4-acetic acid
3-Fluoro-2-(fluoromethyl)-4-(trifluoromethoxy)pyridine-6-carboxylic acid
Methyl 3-hydroxy-6-methoxy-2-(trifluoromethoxy)pyridine-5-acetate
2-Fluoro-6-(fluoromethyl)-5-(trifluoromethoxy)pyridine-3-carboxylic acid