Methyl 2-(bromomethyl)-5-cyano-3-(trifluoromethoxy)pyridine-4-carboxylate
4-(Chloromethyl)-2-cyano-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine
5-(Bromomethyl)-3-cyano-4-(trifluoromethoxy)pyridine-2-acetic acid
Ethyl 2-(difluoromethyl)-4-fluoro-3-(trifluoromethoxy)pyridine-5-acetate