4-(Bromomethyl)-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-6-sulfonamide
4-Bromo-3-fluoro-2-methoxy-5-(trifluoromethoxy)pyridine
2-(Chloromethyl)-5-(difluoromethyl)-6-(trifluoromethyl)pyridine-3-sulfonamide
3-Chloro-2-nitro-4-(trifluoromethoxy)pyridine-5-acetonitrile