Ethyl 5-fluoro-2-nitro-3-(trifluoromethoxy)pyridine-4-acetate
6-Fluoro-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-4-methanol
Methyl 2-fluoro-4-nitro-5-(trifluoromethoxy)pyridine-3-acetate
Ethyl 4-fluoro-5-nitro-3-(trifluoromethoxy)pyridine-2-acetate