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