Ethyl 6-cyano-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-carboxylate
4-Cyano-6-hydroxy-3-(trifluoromethoxy)pyridine-2-acetonitrile
Ethyl 2-cyano-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-carboxylate
2-Fluoro-5-(difluoromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine