Ethyl 3-chloro-5-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 2-cyano-3-methyl-5-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 5-chloro-4-hydroxy-2-(trifluoromethoxy)pyridine-3-carboxylate
3-Cyano-6-methyl-4-(trifluoromethoxy)pyridine-2-carboxylic acid