4-Chloro-2-cyano-5-(difluoromethyl)-3-fluoropyridine
3-Bromo-6-(difluoromethyl)-2-nitropyridine-4-methanol
4-Chloro-2-cyano-3-(difluoromethyl)-5-fluoropyridine
3-Chloro-5-cyano-6-(difluoromethyl)-2-fluoropyridine
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