3-Methoxy-5-(trifluoromethoxy)pyridine-2-acetonitrile
4-(Difluoromethyl)-2-methyl-3-(trifluoromethoxy)pyridine-6-acetonitrile
4-Hydroxy-2-(trifluoromethoxy)pyridine-5-acetonitrile
3-(Difluoromethyl)-5-methyl-6-(trifluoromethoxy)pyridine-2-acetonitrile