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