2-Bromo-4-(difluoromethyl)-6-hydroxy-3-nitropyridine
5-Bromo-2-(difluoromethyl)-3-hydroxy-6-methylpyridine
6-Bromo-4-(difluoromethyl)-3-hydroxy-2-methoxypyridine
2-Bromo-4-(difluoromethyl)-3-hydroxy-5-methoxypyridine
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