Ethyl 4-cyano-3-nitro-2-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 2-(chloromethyl)-4-fluoro-3-(trifluoromethoxy)pyridine-6-acetate
Methyl 2-(chloromethyl)-3-fluoro-6-(trifluoromethoxy)pyridine-4-acetate
Ethyl 4-cyano-6-nitro-3-(trifluoromethoxy)pyridine-2-carboxylate