Methyl 5-cyano-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-4-acetate
6-Fluoro-2-methoxy-4-(trifluoromethoxy)pyridine-3-acetic acid
Methyl 4-cyano-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-acetate
Ethyl 4-fluoro-6-methoxy-3-(trifluoromethoxy)pyridine-2-acetate