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