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