Ethyl 4-(chloromethyl)-3-cyano-2-(trifluoromethoxy)pyridine-6-acetate
4-(Bromomethyl)-3-fluoro-2-(trifluoromethoxy)pyridine-6-carboxylic acid
Ethyl 4-(chloromethyl)-2-cyano-6-(trifluoromethoxy)pyridine-3-acetate
4-(Bromomethyl)-2-fluoro-6-(trifluoromethoxy)pyridine-3-carboxylic acid