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