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