Ethyl 4-cyano-2-methoxy-5-(trifluoromethoxy)pyridine-3-acetate
Ethyl 5-cyano-3-methoxy-2-(trifluoromethoxy)pyridine-4-acetate
3-Chloro-2-(difluoromethyl)-5-hydroxy-4-(trifluoromethoxy)pyridine
Ethyl 3-cyano-5-methoxy-4-(trifluoromethoxy)pyridine-2-acetate