Ethyl 2-cyano-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-6-carboxylate
3-(Bromomethyl)-2-cyano-6-nitro-5-(trifluoromethoxy)pyridine
3-(Bromomethyl)-2-cyano-5-nitro-4-(trifluoromethoxy)pyridine
Ethyl 2-cyano-4-methyl-6-(trifluoromethoxy)pyridine-3-acetate