6-Amino-2-chloro-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine
2-Amino-4-hydroxy-3-(trifluoromethoxy)pyridine-6-sulfonamide
2-Amino-6-chloro-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine
2-Amino-3-hydroxy-6-(trifluoromethoxy)pyridine-4-sulfonamide