3-(Bromomethyl)-2-cyano-6-fluoro-5-(trifluoromethoxy)pyridine
3-(Bromomethyl)-2-cyano-5-fluoro-4-(trifluoromethoxy)pyridine
6-(Bromomethyl)-2-cyano-3-fluoro-4-(trifluoromethoxy)pyridine
4-Cyano-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-methanol