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