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