4-Bromo-3-chloro-5-(difluoromethyl)pyridine-2-sulfonyl chloride
4-Bromo-2-chloro-6-(difluoromethyl)pyridine-3-carbonyl chloride
6-Bromo-4-chloro-3-(difluoromethyl)pyridine-2-carbonyl chloride
4-Bromo-6-chloro-2-(difluoromethyl)pyridine-3-sulfonyl chloride