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