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