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