2-Bromo-6-(difluoromethyl)-5-hydroxypyridine-3-carboxylic acid
3-Bromo-2-(difluoromethyl)-5-hydroxypyridine-6-carboxylic acid
3-Bromo-2-(difluoromethyl)-4-hydroxypyridine-6-carboxylic acid
4-Bromo-6-(difluoromethyl)-3-hydroxypyridine-2-acetonitrile
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