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