Ethyl 3-bromo-4-(difluoromethyl)-2-iodopyridine-5-carboxylate
Ethyl 6-bromo-4-(difluoromethyl)-2-hydroxypyridine-3-acetate
Ethyl 3-bromo-2-(difluoromethyl)-6-iodopyridine-4-carboxylate
Ethyl 6-bromo-4-(difluoromethyl)-3-hydroxypyridine-2-acetate
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