Methyl 5-fluoro-3-nitro-2-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 3-fluoro-4-nitro-5-(trifluoromethoxy)pyridine-2-carboxylate
3-Cyano-6-iodo-4-(trifluoromethoxy)pyridine-2-sulfonamide
Methyl 6-fluoro-4-nitro-2-(trifluoromethoxy)pyridine-3-carboxylate