Ethyl 2-fluoro-5-nitro-3-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 6-fluoro-4-nitro-3-(trifluoromethoxy)pyridine-2-carboxylate
2-Hydroxy-3-methyl-5-(trifluoromethoxy)pyridine-4-methanol
Ethyl 2-fluoro-3-nitro-4-(trifluoromethoxy)pyridine-5-carboxylate