2-Bromo-3-(difluoromethyl)-4-nitropyridine-5-sulfonyl chloride
2-Bromo-3-(chloromethyl)-5-(difluoromethyl)-6-(trifluoromethyl)pyridine
5-Bromo-2-(difluoromethyl)-3-nitropyridine-4-carbonyl chloride
4-Bromo-5-(difluoromethyl)-3-methyl-2-nitropyridine
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