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