3-Bromo-2-(difluoromethyl)-5-nitropyridine-4-acetic acid
3-Bromo-2-(bromomethyl)-5-(difluoromethyl)-6-iodopyridine
3-Bromo-2-(bromomethyl)-4-(difluoromethyl)-6-iodopyridine
2-Bromo-6-(difluoromethyl)-5-nitropyridine-3-acetic acid
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