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