2-(Difluoromethyl)-6-nitro-3-(trifluoromethyl)pyridine-4-acetic acid
6-(Bromomethyl)-2-(difluoromethyl)-4-(trifluoromethyl)pyridine-3-carboxaldehyde
2-(Difluoromethyl)-5-nitro-3-(trifluoromethyl)pyridine-4-acetic acid
2-(Bromomethyl)-3-(difluoromethyl)-4-(trifluoromethyl)pyridine-6-carboxaldehyde