2-(Bromomethyl)-3-(difluoromethyl)-5-hydroxypyridine-6-carboxylic acid
3-(Bromomethyl)-6-(difluoromethyl)-4-hydroxypyridine-2-carboxaldehyde
3-(Difluoromethyl)-2-hydroxy-4-nitropyridine-6-carbonyl chloride
4-(Difluoromethyl)-5-hydroxy-3-nitropyridine-2-acetonitrile