Methyl 4-cyano-2-fluoro-5-(trifluoromethoxy)pyridine-3-carboxylate
2-Chloro-4-(difluoromethyl)-3-fluoro-6-(trifluoromethoxy)pyridine
2-Cyano-5-iodo-3-(trifluoromethoxy)pyridine-6-sulfonamide
Methyl 5-cyano-3-fluoro-2-(trifluoromethoxy)pyridine-4-carboxylate