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