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