2-(Aminomethyl)-6-(difluoromethyl)-3-hydroxypyridine-4-methanol
4-(Bromomethyl)-6-(difluoromethyl)-2-hydroxy-3-methylpyridine
2-(Aminomethyl)-3-(difluoromethyl)-5-hydroxypyridine-4-carboxylic acid
3-(Difluoromethyl)-2-hydroxy-6-nitropyridine-5-sulfonyl chloride