Ethyl 2-cyano-6-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-carboxylate
Ethyl 6-cyano-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-carboxylate
Ethyl 2-cyano-4-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-3-carboxylate
Methyl 6-fluoro-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-carboxylate