Ethyl 3-cyano-2-fluoro-6-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 3-cyano-2-fluoro-4-(trifluoromethoxy)pyridine-6-carboxylate
2-Fluoro-6-methoxy-5-nitro-3-(trifluoromethoxy)pyridine
Ethyl 2-cyano-6-fluoro-5-(trifluoromethoxy)pyridine-3-carboxylate