Ethyl 2-cyano-3-methyl-6-(trifluoromethoxy)pyridine-5-acetate
Ethyl 2-(bromomethyl)-3-cyano-5-(difluoromethyl)pyridine-6-acetate
3-Hydroxy-6-iodo-2-(trifluoromethoxy)pyridine-5-acetonitrile
4-Cyano-6-methoxy-2-(trifluoromethoxy)pyridine-3-acetic acid