Ethyl 5-(difluoromethyl)-2-iodopyridine-4-acetate
Ethyl 4-(difluoromethyl)-3-iodopyridine-5-acetate
Ethyl 3-amino-2-(difluoromethyl)pyridine-6-carboxylate
Ethyl 6-amino-2-(difluoromethyl)pyridine-3-carboxylate
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