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