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