Methyl 4-cyano-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-3-carboxylate
4-Cyano-5-nitro-3-(trifluoromethoxy)pyridine-2-methanol
2-(Bromomethyl)-6-cyano-3-nitro-4-(trifluoromethoxy)pyridine
6-(Bromomethyl)-3-cyano-4-nitro-2-(trifluoromethoxy)pyridine