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