2-(Difluoromethyl)-4-hydroxy-5-nitropyridine-3-carboxaldehyde
2-(Aminomethyl)-3-(difluoromethyl)-6-hydroxy-5-methoxypyridine
4-(Difluoromethyl)-5-hydroxy-2-methyl-3-nitropyridine
3-(Difluoromethyl)-4-hydroxy-5-nitropyridine-2-methanol
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