3-(Difluoromethyl)-4-nitro-2-(trifluoromethyl)pyridine-6-carbonyl chloride
4-(Difluoromethyl)-3-nitro-6-(trifluoromethyl)pyridine-2-sulfonamide
3-(Difluoromethyl)-2-nitro-6-(trifluoromethyl)pyridine-4-carbonyl chloride
4-(Difluoromethyl)-5-nitro-3-(trifluoromethyl)pyridine-2-sulfonamide