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