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