Ethyl 4-(bromomethyl)-5-cyano-2-(trifluoromethoxy)pyridine-3-carboxylate
6-(Bromomethyl)-3-cyano-2-(trifluoromethoxy)pyridine-4-carboxylic acid
3-Fluoro-4-iodo-2-nitro-5-(trifluoromethoxy)pyridine
2-(Bromomethyl)-5-cyano-3-(trifluoromethoxy)pyridine-6-carboxylic acid