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