2-Chloro-5-(difluoromethyl)-3-nitropyridine-6-carboxaldehyde
2-Cyano-6-(difluoromethyl)-3-fluoropyridine-4-carboxamide
3-Bromo-5-mercaptoisonicotinonitrile
2-Hydroxy-3-nitropyridine-4-methanol
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