Ethyl 3-cyano-6-methoxy-2-(trifluoromethoxy)pyridine-4-carboxylate
2-Fluoro-6-methoxy-3-(trifluoromethoxy)pyridine-4-carboxylic acid
Ethyl 5-cyano-2-methoxy-4-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 4-cyano-5-methoxy-2-(trifluoromethoxy)pyridine-3-carboxylate