Methyl 4-hydroxy-2-methoxy-5-(trifluoromethoxy)pyridine-3-acetate
Methyl 3-fluoro-6-(fluoromethyl)-4-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 5-fluoro-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 4-fluoro-5-(fluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylate