Methyl 2-cyano-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-6-carboxylate
3-Chloro-6-nitro-4-(trifluoromethoxy)pyridine-2-sulfonamide
3-Cyano-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-carboxylic acid
5-Chloro-2-nitro-3-(trifluoromethoxy)pyridine-4-sulfonamide