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