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