Ethyl 2-fluoro-3-(fluoromethyl)-4-(trifluoromethoxy)pyridine-6-acetate
4-(Chloromethyl)-5-hydroxy-2-(trifluoromethoxy)pyridine-3-acetic acid
Methyl 3-fluoro-6-(fluoromethyl)-2-(trifluoromethoxy)pyridine-5-acetate
4-(Chloromethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine-2-acetic acid