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