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