Ethyl 5-cyano-2-methyl-4-(trifluoromethoxy)pyridine-3-acetate
Methyl 4-cyano-2-(fluoromethyl)-6-(trifluoromethoxy)pyridine-3-acetate
2-Cyano-5-(difluoromethyl)-3-nitro-4-(trifluoromethoxy)pyridine
Ethyl 4-cyano-3-methyl-5-(trifluoromethoxy)pyridine-2-acetate