6-(Difluoromethyl)-4-methyl-2-(trifluoromethyl)pyridine-3-acetonitrile
5-(Difluoromethyl)-2-methyl-3-(trifluoromethyl)pyridine-4-acetonitrile
2-(Difluoromethyl)-4-methyl-3-(trifluoromethyl)pyridine-6-acetonitrile
4-(Difluoromethyl)-3-methyl-6-(trifluoromethyl)pyridine-2-acetonitrile