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