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