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