3-(Difluoromethyl)-2-hydroxy-4-nitropyridine-6-methanol
2-(Aminomethyl)-3-(difluoromethyl)-4-hydroxy-5-nitropyridine
Methyl 3-(bromomethyl)-2-(difluoromethyl)-5-hydroxypyridine-6-carboxylate
4-(Difluoromethyl)-5-hydroxy-3-methylpyridine-2-carboxamide