Ethyl 4-amino-2-iodo-3-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 2-amino-5-nitro-3-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 5-amino-3-iodo-4-(trifluoromethoxy)pyridine-2-carboxylate
3-Amino-6-hydroxy-4-(trifluoromethoxy)pyridine-2-acetic acid