2-Bromo-3-(difluoromethyl)-4-hydroxypyridine-6-acetonitrile
3-Bromo-6-(difluoromethyl)-2-hydroxy-4-(trifluoromethyl)pyridine
3-Bromo-6-(difluoromethyl)-4-hydroxy-2-(trifluoromethyl)pyridine
3-Bromo-4-(difluoromethyl)-2-hydroxy-5-(trifluoromethyl)pyridine