4-(Difluoromethyl)-6-nitro-3-(trifluoromethyl)pyridine-2-acetonitrile
2-(Difluoromethyl)-5-nitro-3-(trifluoromethyl)pyridine-6-acetonitrile
2-(Difluoromethyl)-4-nitro-3-(trifluoromethyl)pyridine-6-acetonitrile
Methyl 5-(difluoromethyl)-2-methyl-3-(trifluoromethyl)pyridine-6-acetate