2-Chloro-4-nitro-5-(trifluoromethoxy)pyridine-3-sulfonamide
2-Chloro-3-nitro-6-(trifluoromethoxy)pyridine-5-sulfonamide
3-Bromo-5-(chloromethyl)-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine
2-Chloro-4-(difluoromethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine