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