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