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