5-(Aminomethyl)-3-(difluoromethyl)-2-hydroxy-4-nitropyridine
3-(Chloromethyl)-2-(difluoromethyl)-6-hydroxy-5-nitropyridine
2-(Difluoromethyl)-3-hydroxy-4-methoxypyridine-5-acetic acid
2-(Difluoromethyl)-3-hydroxy-4-nitropyridine-6-acetonitrile
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