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