6-(Difluoromethyl)-4-hydroxy-3-methylpyridine-2-carboxylic acid
4-(Bromomethyl)-5-(difluoromethyl)-2-hydroxy-3-methylpyridine
4-(Difluoromethyl)-6-hydroxy-3-methylpyridine-2-carboxaldehyde
4-(Bromomethyl)-3-(difluoromethyl)-5-hydroxy-2-methylpyridine