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