Ethyl 2-(bromomethyl)-4-cyano-5-(trifluoromethoxy)pyridine-3-carboxylate
3-Chloro-5-(chloromethyl)-4-(trifluoromethoxy)pyridine-2-methanol
5-Chloro-4-(chloromethyl)-2-(trifluoromethoxy)pyridine-3-methanol
2-Chloro-5-(chloromethyl)-6-(trifluoromethoxy)pyridine-3-methanol