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