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