2-(Difluoromethyl)-6-hydroxy-3-methyl-5-nitropyridine
3-(Bromomethyl)-4-(difluoromethyl)-6-hydroxy-2-methylpyridine
2-(Chloromethyl)-3-(difluoromethyl)-6-hydroxy-5-methoxypyridine
4-(Bromomethyl)-6-(difluoromethyl)-2-hydroxy-3-methoxypyridine
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