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