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