6-Bromo-2-(difluoromethyl)-4-nitropyridine-3-carboxaldehyde
2-Chloro-4-cyano-5-(difluoromethyl)-3-hydroxypyridine
2-Bromo-6-(difluoromethyl)-3-nitropyridine-5-carboxaldehyde
2-Chloro-4-cyano-3-(difluoromethyl)-5-hydroxypyridine
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