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