Ethyl 3-fluoro-4-nitro-2-(trifluoromethoxy)pyridine-5-acetate
6-Hydroxy-4-methoxy-3-(trifluoromethoxy)pyridine-2-acetic acid
Ethyl 3-fluoro-2-nitro-4-(trifluoromethoxy)pyridine-5-acetate
Ethyl 4-hydroxy-5-methoxy-3-(trifluoromethoxy)pyridine-2-carboxylate