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