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