Ethyl 3-cyano-5-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-2-carboxylate
Ethyl 3-cyano-4-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-2-carboxylate
4-(Difluoromethyl)-3-hydroxy-2-iodo-6-(trifluoromethoxy)pyridine
4-Cyano-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine-6-acetic acid