Ethyl 2-(difluoromethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine-4-carboxylate
2-Hydroxy-5-nitro-3-(trifluoromethoxy)pyridine-4-sulfonamide
4-Iodo-5-methoxy-3-nitro-2-(trifluoromethoxy)pyridine
6-Hydroxy-4-nitro-3-(trifluoromethoxy)pyridine-2-sulfonamide