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