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