Methyl 3-(bromomethyl)-2-(difluoromethyl)-5-hydroxypyridine-6-carboxylate
4-(Difluoromethyl)-5-hydroxy-3-methylpyridine-2-carboxamide
2-(Bromomethyl)-5-(difluoromethyl)-4-hydroxypyridine-3-acetic acid
Ethyl 3-(difluoromethyl)-6-hydroxy-2-nitropyridine-4-carboxylate