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