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