Ethyl 3-(difluoromethyl)-6-hydroxy-4-nitropyridine-2-acetate
6-(Difluoromethyl)-4-hydroxy-3-methylpyridine-2-carboxylic acid
4-(Bromomethyl)-5-(difluoromethyl)-2-hydroxy-3-methylpyridine
4-(Difluoromethyl)-6-hydroxy-3-methylpyridine-2-carboxaldehyde
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