3-Bromo-2-(difluoromethyl)-5-nitropyridine-4-sulfonyl chloride
4-Bromo-6-(chloromethyl)-2-(difluoromethyl)pyridine-3-acetic acid
3-Bromo-2-(difluoromethyl)-4-nitropyridine-5-sulfonyl chloride
5-Bromo-3-(difluoromethyl)-2-nitropyridine-4-acetonitrile
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