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