Ethyl 3-hydroxy-5-nitro-2-(trifluoromethoxy)pyridine-4-acetate
Ethyl 2-fluoro-4-(fluoromethyl)-3-(trifluoromethoxy)pyridine-5-carboxylate
2-Hydroxy-6-nitro-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
Ethyl 3-hydroxy-4-methoxy-2-(trifluoromethoxy)pyridine-6-acetate