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