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