Ethyl 2-amino-3-(bromomethyl)-4-(trifluoromethoxy)pyridine-5-acetate
Ethyl 3-amino-6-nitro-2-(trifluoromethoxy)pyridine-4-acetate
Ethyl 3-amino-6-nitro-2-(trifluoromethoxy)pyridine-5-acetate
Ethyl 3-amino-6-nitro-4-(trifluoromethoxy)pyridine-2-acetate