4-Cyano-2-methoxy-3-(trifluoromethoxy)pyridine-5-carboxylic acid
Ethyl 3-chloro-2-methoxy-4-(trifluoromethoxy)pyridine-6-carboxylate
3-Cyano-5-methoxy-2-(trifluoromethoxy)pyridine-4-carboxylic acid
Ethyl 2-chloro-6-methoxy-5-(trifluoromethoxy)pyridine-3-carboxylate