4-Chloro-3-(difluoromethyl)-5-hydroxypyridine-2-carboxaldehyde
4-Chloro-3-(difluoromethyl)-2-hydroxy-6-iodopyridine
4-Chloro-6-(difluoromethyl)-2-hydroxy-3-iodopyridine
4-Chloro-3-(difluoromethyl)-2-hydroxypyridine-5-carboxaldehyde
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