3-(Difluoromethyl)-6-nitro-4-(trifluoromethoxy)pyridine-2-sulfonamide
2-(Bromomethyl)-3-(difluoromethyl)-5-(trifluoromethoxy)pyridine-4-acetonitrile
4-(Difluoromethyl)-5-nitro-3-(trifluoromethoxy)pyridine-2-sulfonamide
Ethyl 4-(bromomethyl)-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-acetate