3-Bromo-6-chloro-2-(difluoromethyl)-5-nitropyridine
5-Bromo-2-chloro-3-(difluoromethyl)-6-nitropyridine
4-Bromo-3-chloro-6-(difluoromethyl)-2-nitropyridine
2-Bromo-3-chloro-4-(chloromethyl)-6-(difluoromethyl)pyridine
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