Methyl 3-bromo-5-chloro-4-(difluoromethyl)pyridine-2-carboxylate
3-Bromo-4-chloro-2-(difluoromethyl)-5-fluoropyridine
3-Bromo-5-chloro-6-(difluoromethyl)-2-fluoropyridine
3-Bromo-2-chloro-4-(difluoromethyl)-5-fluoropyridine
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