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