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