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