Ethyl 2,3-difluoro-4-(difluoromethyl)pyridine-5-acetate
Ethyl 5-(chloromethyl)-3-(difluoromethyl)pyridine-2-acetate
Methyl 2,6-dibromo-3-(difluoromethyl)pyridine-4-carboxylate
Ethyl 5-(chloromethyl)-4-(difluoromethyl)pyridine-2-acetate
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