Ethyl 2-bromo-3-(difluoromethyl)-6-(trifluoromethyl)pyridine-5-carboxylate
3-Chloro-6-cyano-2-(difluoromethyl)-5-nitropyridine
5-Chloro-2-cyano-4-(difluoromethyl)-3-nitropyridine
5-Chloro-2-cyano-3-(difluoromethyl)-4-nitropyridine
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