Ethyl 2-amino-6-fluoro-4-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 2-amino-5-fluoro-6-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 2-amino-4-fluoro-5-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 2-amino-3-fluoro-6-(trifluoromethoxy)pyridine-5-carboxylate