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