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