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