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