Methyl 3-(chloromethyl)-6-fluoro-2-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 4-(chloromethyl)-2-fluoro-6-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 3-(chloromethyl)-5-fluoro-6-(trifluoromethoxy)pyridine-2-carboxylate
4-(Chloromethyl)-3-fluoro-6-(trifluoromethoxy)pyridine-2-acetic acid