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