2-Cyano-3-(difluoromethyl)-5-methoxypyridine-4-sulfonyl chloride
3-Bromo-4-nitro-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
2-Chloro-5-fluoro-3-(trifluoromethoxy)pyridine-6-sulfonamide
4-(Bromomethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine-3-acetonitrile