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