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