2-(Bromomethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine-4-acetonitrile
6-(Bromomethyl)-2-(difluoromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine
6-(Bromomethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine-2-acetonitrile
2-(Bromomethyl)-6-(difluoromethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine