Methyl 2-(difluoromethyl)-3-nitro-5-(trifluoromethyl)pyridine-4-acetate
Methyl 3-(bromomethyl)-5-(difluoromethyl)-6-(trifluoromethyl)pyridine-2-carboxylate
3-(Difluoromethyl)-6-nitro-2-(trifluoromethyl)pyridine-4-acetic acid
4-(Difluoromethyl)-5-nitro-2-(trifluoromethyl)pyridine-3-acetic acid