2-(Difluoromethyl)-5-nitro-3-(trifluoromethyl)pyridine-6-carboxaldehyde
2-(Difluoromethyl)-4-nitro-3-(trifluoromethyl)pyridine-6-methanol
6-(Difluoromethyl)-4-nitro-2-(trifluoromethyl)pyridine-3-carboxaldehyde
2-(Difluoromethyl)-3-nitro-5-(trifluoromethyl)pyridine-6-methanol