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