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