5-Chloro-3-cyano-2-(difluoromethyl)-4-nitropyridine
3-Chloro-5-cyano-6-(difluoromethyl)pyridine-2-sulfonyl chloride
5-Chloro-3-cyano-4-(difluoromethyl)-2-nitropyridine
3-Chloro-5-cyano-2-(difluoromethyl)-6-nitropyridine
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