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