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