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