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