4-Bromo-3-(difluoromethyl)-2-nitropyridine-6-acetonitrile
2-Bromo-3-(difluoromethyl)-6-nitropyridine-4-sulfonamide
4-Bromo-6-(difluoromethyl)-2-nitropyridine-3-acetonitrile
2-Bromo-3-(difluoromethyl)-5-nitropyridine-4-sulfonamide
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