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