4-Fluoro-2-methoxy-3-nitro-5-(trifluoromethoxy)pyridine
3-Fluoro-5-methoxy-2-nitro-4-(trifluoromethoxy)pyridine
Methyl 6-cyano-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 2-(chloromethyl)-3-cyano-5-(trifluoromethoxy)pyridine-4-carboxylate