Ethyl 3-fluoro-5-nitro-2-(trifluoromethoxy)pyridine-6-acetate
6-Fluoro-4-nitro-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride
Ethyl 3-fluoro-4-nitro-6-(trifluoromethoxy)pyridine-2-acetate
4-Fluoro-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-acetic acid