2-(Bromomethyl)-5-chloro-3-methoxy-6-(trifluoromethoxy)pyridine
6-(Bromomethyl)-4-chloro-2-methoxy-3-(trifluoromethoxy)pyridine
3-(Bromomethyl)-5-chloro-6-methyl-2-(trifluoromethoxy)pyridine
6-(Bromomethyl)-4-chloro-3-methoxy-2-(trifluoromethoxy)pyridine