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