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