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