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