Ethyl 4-cyano-3-hydroxy-2-(trifluoromethoxy)pyridine-5-carboxylate
3-(Bromomethyl)-2-cyano-5-fluoro-6-(trifluoromethoxy)pyridine
3-(Bromomethyl)-2-cyano-4-fluoro-5-(trifluoromethoxy)pyridine
3-Cyano-5-(difluoromethyl)-2-fluoro-6-(trifluoromethoxy)pyridine