2-Nitro-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-4-sulfonamide
5-(Bromomethyl)-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-sulfonyl chloride
3-Nitro-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-5-sulfonyl chloride
4-Nitro-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-carbonyl chloride