Ethyl 4-chloro-6-nitro-2-(trifluoromethoxy)pyridine-3-acetate
Ethyl 5-bromo-3-iodo-4-(trifluoromethoxy)pyridine-2-acetate
Ethyl 2-(aminomethyl)-6-chloro-5-(trifluoromethoxy)pyridine-3-acetate
Ethyl 3-chloro-6-nitro-2-(trifluoromethoxy)pyridine-5-acetate