2-Chloro-4-fluoro-5-(trifluoromethoxy)pyridine-3-sulfonamide
2-Bromo-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylic acid
2-Chloro-3-fluoro-6-(trifluoromethoxy)pyridine-5-sulfonamide
2-Bromo-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine-4-carboxylic acid