Ethyl 3-hydroxy-6-nitro-2-(trifluoromethoxy)pyridine-4-acetate
5-Fluoro-4-(fluoromethyl)-3-(trifluoromethoxy)pyridine-2-acetic acid
3-Fluoro-4-(fluoromethyl)-2-(trifluoromethoxy)pyridine-5-acetic acid
Ethyl 5-hydroxy-2-nitro-4-(trifluoromethoxy)pyridine-3-acetate