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