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