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