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