Ethyl 2-bromo-6-methyl-3-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 2-chloro-3-cyano-5-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 2-chloro-3-cyano-4-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 6-bromo-3-methyl-2-(trifluoromethoxy)pyridine-4-carboxylate