Ethyl 3-cyano-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-carboxylate
3-(Difluoromethyl)-2-fluoro-4-(trifluoromethoxy)pyridine-6-carboxylic acid
Ethyl 5-cyano-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylate
3-Fluoro-4-methyl-2-(trifluoromethoxy)pyridine-6-acetonitrile