Ethyl 3-cyano-4-methoxy-5-(trifluoromethoxy)pyridine-2-carboxylate
3-Chloro-5-hydroxy-2-nitro-4-(trifluoromethoxy)pyridine
Ethyl 3-cyano-2-methoxy-6-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 3-cyano-2-methoxy-5-(trifluoromethoxy)pyridine-4-carboxylate