2-Cyano-4-methyl-3-(trifluoromethoxy)pyridine-6-acetic acid
4-(Bromomethyl)-3-fluoro-2-(trifluoromethoxy)pyridine-6-acetic acid
2-Cyano-3-methyl-4-(trifluoromethoxy)pyridine-6-acetic acid
6-(Chloromethyl)-2-fluoro-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine