Methyl 2-(aminomethyl)-3-bromo-4-(trifluoromethoxy)pyridine-5-acetate
Methyl 4-bromo-5-nitro-3-(trifluoromethoxy)pyridine-2-acetate
Methyl 3-bromo-6-nitro-2-(trifluoromethoxy)pyridine-4-acetate
Methyl 5-bromo-2-nitro-3-(trifluoromethoxy)pyridine-4-acetate