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