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