Ethyl 2-fluoro-6-nitro-4-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 2-fluoro-5-nitro-6-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 6-fluoro-4-(fluoromethyl)-3-(trifluoromethoxy)pyridine-2-acetate
Ethyl 2-fluoro-4-(fluoromethyl)-3-(trifluoromethoxy)pyridine-5-acetate