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