3-Cyano-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-carboxylic acid
3-Cyano-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-acetonitrile
Ethyl 3-cyano-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 2-cyano-3-(difluoromethyl)-5-(trifluoromethoxy)pyridine-6-carboxylate