5-Bromo-2-(difluoromethyl)-3-iodopyridine-6-carboxaldehyde
4-Bromo-5-(difluoromethyl)-3-iodopyridine-2-carboxaldehyde
4-Bromo-2-(difluoromethyl)-5-nitropyridine-3-sulfonyl chloride
4-Bromo-3-(difluoromethyl)-2-iodopyridine-6-carboxaldehyde
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