Ethyl 4-(bromomethyl)-2-cyano-6-(trifluoromethoxy)pyridine-3-carboxylate
4-Cyano-2-(difluoromethyl)-5-methoxy-3-(trifluoromethoxy)pyridine
6-Chloro-4-(fluoromethyl)-3-methyl-2-(trifluoromethoxy)pyridine
5-Cyano-3-(difluoromethyl)-2-methoxy-4-(trifluoromethoxy)pyridine