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