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