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