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